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Finding the Fourth Proportional to 528,002.80, 792,004.20 and 524,892.40

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Solution

The fourth proportional to 528,002.80, 792,004.20 and 524,892.40 is: 787,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,002.80 : 792,004.20 = 524,892.40 : x
  2. Step 2: Convert to fraction form
    528,002.80/792,004.20 = 524,892.40/x
  3. Step 3: Cross multiply
    528,002.80x = 792,004.20 × 524,892.40
  4. Step 4: Simplify right side
    528,002.80x = 415,716,985,348.08
  5. Step 5: Solve for x
    x = 415,716,985,348.08/528,002.80
  6. Step 6: Final answer
    x = 787,338.60

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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.