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Finding the Fourth Proportional to 524,740.56, 724,376.52 and 355,488.72

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Solution

The fourth proportional to 524,740.56, 724,376.52 and 355,488.72 is: 490,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,740.56 : 724,376.52 = 355,488.72 : x
  2. Step 2: Convert to fraction form
    524,740.56/724,376.52 = 355,488.72/x
  3. Step 3: Cross multiply
    524,740.56x = 724,376.52 × 355,488.72
  4. Step 4: Simplify right side
    524,740.56x = 257,507,681,892.85
  5. Step 5: Solve for x
    x = 257,507,681,892.85/524,740.56
  6. Step 6: Final answer
    x = 490,733.33

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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.