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Finding the Fourth Proportional to 528,037.92, 728,426.32 and 377,222.40

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Solution

The fourth proportional to 528,037.92, 728,426.32 and 377,222.40 is: 520,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,037.92 : 728,426.32 = 377,222.40 : x
  2. Step 2: Convert to fraction form
    528,037.92/728,426.32 = 377,222.40/x
  3. Step 3: Cross multiply
    528,037.92x = 728,426.32 × 377,222.40
  4. Step 4: Simplify right side
    528,037.92x = 274,778,724,653.57
  5. Step 5: Solve for x
    x = 274,778,724,653.57/528,037.92
  6. Step 6: Final answer
    x = 520,376.88

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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.