Home / 749,425.60-1,124,138.40-670,693.60

Finding the Fourth Proportional to 749,425.60, 1,124,138.40 and 670,693.60

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Solution

The fourth proportional to 749,425.60, 1,124,138.40 and 670,693.60 is: 1,006,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,425.60 : 1,124,138.40 = 670,693.60 : x
  2. Step 2: Convert to fraction form
    749,425.60/1,124,138.40 = 670,693.60/x
  3. Step 3: Cross multiply
    749,425.60x = 1,124,138.40 × 670,693.60
  4. Step 4: Simplify right side
    749,425.60x = 753,952,430,394.24
  5. Step 5: Solve for x
    x = 753,952,430,394.24/749,425.60
  6. Step 6: Final answer
    x = 1,006,040.40

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Double scale
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Similar ratio
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1.5x scale

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.