Home / 748,076.40-1,032,331.50-421,390.44

Finding the Fourth Proportional to 748,076.40, 1,032,331.50 and 421,390.44

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Solution

The fourth proportional to 748,076.40, 1,032,331.50 and 421,390.44 is: 581,510.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,076.40 : 1,032,331.50 = 421,390.44 : x
  2. Step 2: Convert to fraction form
    748,076.40/1,032,331.50 = 421,390.44/x
  3. Step 3: Cross multiply
    748,076.40x = 1,032,331.50 × 421,390.44
  4. Step 4: Simplify right side
    748,076.40x = 435,014,625,010.86
  5. Step 5: Solve for x
    x = 435,014,625,010.86/748,076.40
  6. Step 6: Final answer
    x = 581,510.96

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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.