Home / 702,264.80-1,053,397.20-421,637.60

Finding the Fourth Proportional to 702,264.80, 1,053,397.20 and 421,637.60

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Solution

The fourth proportional to 702,264.80, 1,053,397.20 and 421,637.60 is: 632,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,264.80 : 1,053,397.20 = 421,637.60 : x
  2. Step 2: Convert to fraction form
    702,264.80/1,053,397.20 = 421,637.60/x
  3. Step 3: Cross multiply
    702,264.80x = 1,053,397.20 × 421,637.60
  4. Step 4: Simplify right side
    702,264.80x = 444,151,867,254.72
  5. Step 5: Solve for x
    x = 444,151,867,254.72/702,264.80
  6. Step 6: Final answer
    x = 632,456.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.