Home / 918,001.31-1,377,235.55-539,242.37

Finding the Fourth Proportional to 918,001.31, 1,377,235.55 and 539,242.37

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Solution

The fourth proportional to 918,001.31, 1,377,235.55 and 539,242.37 is: 809,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,001.31 : 1,377,235.55 = 539,242.37 : x
  2. Step 2: Convert to fraction form
    918,001.31/1,377,235.55 = 539,242.37/x
  3. Step 3: Cross multiply
    918,001.31x = 1,377,235.55 × 539,242.37
  4. Step 4: Simplify right side
    918,001.31x = 742,663,762,030.25
  5. Step 5: Solve for x
    x = 742,663,762,030.25/918,001.31
  6. Step 6: Final answer
    x = 809,000.76

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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.