Home / 744,885.40-1,117,328.10-429,957.40

Finding the Fourth Proportional to 744,885.40, 1,117,328.10 and 429,957.40

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Solution

The fourth proportional to 744,885.40, 1,117,328.10 and 429,957.40 is: 644,936.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,885.40 : 1,117,328.10 = 429,957.40 : x
  2. Step 2: Convert to fraction form
    744,885.40/1,117,328.10 = 429,957.40/x
  3. Step 3: Cross multiply
    744,885.40x = 1,117,328.10 × 429,957.40
  4. Step 4: Simplify right side
    744,885.40x = 480,403,484,822.94
  5. Step 5: Solve for x
    x = 480,403,484,822.94/744,885.40
  6. Step 6: Final answer
    x = 644,936.10

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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.