Home / 589,613.40-884,420.10-402,989.40

Finding the Fourth Proportional to 589,613.40, 884,420.10 and 402,989.40

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Solution

The fourth proportional to 589,613.40, 884,420.10 and 402,989.40 is: 604,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,613.40 : 884,420.10 = 402,989.40 : x
  2. Step 2: Convert to fraction form
    589,613.40/884,420.10 = 402,989.40/x
  3. Step 3: Cross multiply
    589,613.40x = 884,420.10 × 402,989.40
  4. Step 4: Simplify right side
    589,613.40x = 356,411,925,446.94
  5. Step 5: Solve for x
    x = 356,411,925,446.94/589,613.40
  6. Step 6: Final answer
    x = 604,484.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.