Home / 748,329.90-1,032,679.70-421,659.73

Finding the Fourth Proportional to 748,329.90, 1,032,679.70 and 421,659.73

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Solution

The fourth proportional to 748,329.90, 1,032,679.70 and 421,659.73 is: 581,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,329.90 : 1,032,679.70 = 421,659.73 : x
  2. Step 2: Convert to fraction form
    748,329.90/1,032,679.70 = 421,659.73/x
  3. Step 3: Cross multiply
    748,329.90x = 1,032,679.70 × 421,659.73
  4. Step 4: Simplify right side
    748,329.90x = 435,439,441,370.18
  5. Step 5: Solve for x
    x = 435,439,441,370.18/748,329.90
  6. Step 6: Final answer
    x = 581,881.66

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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.