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Finding the Fourth Proportional to 528,037.10, 789,751.65 and 472,280.30

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Solution

The fourth proportional to 528,037.10, 789,751.65 and 472,280.30 is: 706,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.10 : 789,751.65 = 472,280.30 : x
  2. Step 2: Convert to fraction form
    528,037.10/789,751.65 = 472,280.30/x
  3. Step 3: Cross multiply
    528,037.10x = 789,751.65 × 472,280.30
  4. Step 4: Simplify right side
    528,037.10x = 372,984,146,187.50
  5. Step 5: Solve for x
    x = 372,984,146,187.50/528,037.10
  6. Step 6: Final answer
    x = 706,359.74

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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.