Home / 742,174.25-1,024,202.45-402,642.50

Finding the Fourth Proportional to 742,174.25, 1,024,202.45 and 402,642.50

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Solution

The fourth proportional to 742,174.25, 1,024,202.45 and 402,642.50 is: 555,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,174.25 : 1,024,202.45 = 402,642.50 : x
  2. Step 2: Convert to fraction form
    742,174.25/1,024,202.45 = 402,642.50/x
  3. Step 3: Cross multiply
    742,174.25x = 1,024,202.45 × 402,642.50
  4. Step 4: Simplify right side
    742,174.25x = 412,387,432,960.91
  5. Step 5: Solve for x
    x = 412,387,432,960.91/742,174.25
  6. Step 6: Final answer
    x = 555,647.72

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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.