Home / 742,425.18-1,024,547.39-402,893.43

Finding the Fourth Proportional to 742,425.18, 1,024,547.39 and 402,893.43

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Solution

The fourth proportional to 742,425.18, 1,024,547.39 and 402,893.43 is: 555,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,425.18 : 1,024,547.39 = 402,893.43 : x
  2. Step 2: Convert to fraction form
    742,425.18/1,024,547.39 = 402,893.43/x
  3. Step 3: Cross multiply
    742,425.18x = 1,024,547.39 × 402,893.43
  4. Step 4: Simplify right side
    742,425.18x = 412,783,407,808.98
  5. Step 5: Solve for x
    x = 412,783,407,808.98/742,425.18
  6. Step 6: Final answer
    x = 555,993.28

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Double scale
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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.