Home / 742,042.72-1,023,264.48-634,967.20

Finding the Fourth Proportional to 742,042.72, 1,023,264.48 and 634,967.20

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Solution

The fourth proportional to 742,042.72, 1,023,264.48 and 634,967.20 is: 875,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,042.72 : 1,023,264.48 = 634,967.20 : x
  2. Step 2: Convert to fraction form
    742,042.72/1,023,264.48 = 634,967.20/x
  3. Step 3: Cross multiply
    742,042.72x = 1,023,264.48 × 634,967.20
  4. Step 4: Simplify right side
    742,042.72x = 649,739,381,725.06
  5. Step 5: Solve for x
    x = 649,739,381,725.06/742,042.72
  6. Step 6: Final answer
    x = 875,609.13

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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.