Home / 742,504.38-1,024,656.75-402,972.72

Finding the Fourth Proportional to 742,504.38, 1,024,656.75 and 402,972.72

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Solution

The fourth proportional to 742,504.38, 1,024,656.75 and 402,972.72 is: 556,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,504.38 : 1,024,656.75 = 402,972.72 : x
  2. Step 2: Convert to fraction form
    742,504.38/1,024,656.75 = 402,972.72/x
  3. Step 3: Cross multiply
    742,504.38x = 1,024,656.75 × 402,972.72
  4. Step 4: Simplify right side
    742,504.38x = 412,908,717,613.86
  5. Step 5: Solve for x
    x = 412,908,717,613.86/742,504.38
  6. Step 6: Final answer
    x = 556,102.74

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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.