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Finding the Fourth Proportional to 539,152.50, 744,030.45 and 300,688.50

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Solution

The fourth proportional to 539,152.50, 744,030.45 and 300,688.50 is: 414,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,152.50 : 744,030.45 = 300,688.50 : x
  2. Step 2: Convert to fraction form
    539,152.50/744,030.45 = 300,688.50/x
  3. Step 3: Cross multiply
    539,152.50x = 744,030.45 × 300,688.50
  4. Step 4: Simplify right side
    539,152.50x = 223,721,399,964.83
  5. Step 5: Solve for x
    x = 223,721,399,964.83/539,152.50
  6. Step 6: Final answer
    x = 414,950.13

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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.