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Finding the Fourth Proportional to 545,152.68, 817,379.10 and 357,945.48

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Solution

The fourth proportional to 545,152.68, 817,379.10 and 357,945.48 is: 536,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,152.68 : 817,379.10 = 357,945.48 : x
  2. Step 2: Convert to fraction form
    545,152.68/817,379.10 = 357,945.48/x
  3. Step 3: Cross multiply
    545,152.68x = 817,379.10 × 357,945.48
  4. Step 4: Simplify right side
    545,152.68x = 292,577,154,291.47
  5. Step 5: Solve for x
    x = 292,577,154,291.47/545,152.68
  6. Step 6: Final answer
    x = 536,688.46

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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.