Home / 742,078.46-1,024,068.60-419,781.68

Finding the Fourth Proportional to 742,078.46, 1,024,068.60 and 419,781.68

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Solution

The fourth proportional to 742,078.46, 1,024,068.60 and 419,781.68 is: 579,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,078.46 : 1,024,068.60 = 419,781.68 : x
  2. Step 2: Convert to fraction form
    742,078.46/1,024,068.60 = 419,781.68/x
  3. Step 3: Cross multiply
    742,078.46x = 1,024,068.60 × 419,781.68
  4. Step 4: Simplify right side
    742,078.46x = 429,885,237,343.25
  5. Step 5: Solve for x
    x = 429,885,237,343.25/742,078.46
  6. Step 6: Final answer
    x = 579,298.90

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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.