Home / 730,730.16-1,008,401.40-420,693.45

Finding the Fourth Proportional to 730,730.16, 1,008,401.40 and 420,693.45

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Solution

The fourth proportional to 730,730.16, 1,008,401.40 and 420,693.45 is: 580,553.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,730.16 : 1,008,401.40 = 420,693.45 : x
  2. Step 2: Convert to fraction form
    730,730.16/1,008,401.40 = 420,693.45/x
  3. Step 3: Cross multiply
    730,730.16x = 1,008,401.40 × 420,693.45
  4. Step 4: Simplify right side
    730,730.16x = 424,227,860,169.33
  5. Step 5: Solve for x
    x = 424,227,860,169.33/730,730.16
  6. Step 6: Final answer
    x = 580,553.37

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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.