Home / 742,333.85-1,024,432.62-402,802.10

Finding the Fourth Proportional to 742,333.85, 1,024,432.62 and 402,802.10

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Solution

The fourth proportional to 742,333.85, 1,024,432.62 and 402,802.10 is: 555,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,333.85 : 1,024,432.62 = 402,802.10 : x
  2. Step 2: Convert to fraction form
    742,333.85/1,024,432.62 = 402,802.10/x
  3. Step 3: Cross multiply
    742,333.85x = 1,024,432.62 × 402,802.10
  4. Step 4: Simplify right side
    742,333.85x = 412,643,610,644.50
  5. Step 5: Solve for x
    x = 412,643,610,644.50/742,333.85
  6. Step 6: Final answer
    x = 555,873.36

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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.