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Finding the Fourth Proportional to 817,404.60, 1,128,000.60 and 473,255.04

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Solution

The fourth proportional to 817,404.60, 1,128,000.60 and 473,255.04 is: 653,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,404.60 : 1,128,000.60 = 473,255.04 : x
  2. Step 2: Convert to fraction form
    817,404.60/1,128,000.60 = 473,255.04/x
  3. Step 3: Cross multiply
    817,404.60x = 1,128,000.60 × 473,255.04
  4. Step 4: Simplify right side
    817,404.60x = 533,831,969,073.02
  5. Step 5: Solve for x
    x = 533,831,969,073.02/817,404.60
  6. Step 6: Final answer
    x = 653,081.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.