Home / 742,519.18-1,024,676.96-402,987.42

Finding the Fourth Proportional to 742,519.18, 1,024,676.96 and 402,987.42

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Solution

The fourth proportional to 742,519.18, 1,024,676.96 and 402,987.42 is: 556,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,519.18 : 1,024,676.96 = 402,987.42 : x
  2. Step 2: Convert to fraction form
    742,519.18/1,024,676.96 = 402,987.42/x
  3. Step 3: Cross multiply
    742,519.18x = 1,024,676.96 × 402,987.42
  4. Step 4: Simplify right side
    742,519.18x = 412,931,924,443.84
  5. Step 5: Solve for x
    x = 412,931,924,443.84/742,519.18
  6. Step 6: Final answer
    x = 556,122.91

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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.