Home / 917,483.70-1,376,225.55-386,042.70

Finding the Fourth Proportional to 917,483.70, 1,376,225.55 and 386,042.70

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Solution

The fourth proportional to 917,483.70, 1,376,225.55 and 386,042.70 is: 579,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,483.70 : 1,376,225.55 = 386,042.70 : x
  2. Step 2: Convert to fraction form
    917,483.70/1,376,225.55 = 386,042.70/x
  3. Step 3: Cross multiply
    917,483.70x = 1,376,225.55 × 386,042.70
  4. Step 4: Simplify right side
    917,483.70x = 531,281,827,130.99
  5. Step 5: Solve for x
    x = 531,281,827,130.99/917,483.70
  6. Step 6: Final answer
    x = 579,064.05

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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.