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Finding the Fourth Proportional to 897,750.80, 1,346,626.20 and 425,358.80

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Solution

The fourth proportional to 897,750.80, 1,346,626.20 and 425,358.80 is: 638,038.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,750.80 : 1,346,626.20 = 425,358.80 : x
  2. Step 2: Convert to fraction form
    897,750.80/1,346,626.20 = 425,358.80/x
  3. Step 3: Cross multiply
    897,750.80x = 1,346,626.20 × 425,358.80
  4. Step 4: Simplify right side
    897,750.80x = 572,799,304,480.56
  5. Step 5: Solve for x
    x = 572,799,304,480.56/897,750.80
  6. Step 6: Final answer
    x = 638,038.20

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Double scale
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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.