Home / 897,923.70-1,346,885.55-425,531.70

Finding the Fourth Proportional to 897,923.70, 1,346,885.55 and 425,531.70

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Solution

The fourth proportional to 897,923.70, 1,346,885.55 and 425,531.70 is: 638,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,923.70 : 1,346,885.55 = 425,531.70 : x
  2. Step 2: Convert to fraction form
    897,923.70/1,346,885.55 = 425,531.70/x
  3. Step 3: Cross multiply
    897,923.70x = 1,346,885.55 × 425,531.70
  4. Step 4: Simplify right side
    897,923.70x = 573,142,497,796.94
  5. Step 5: Solve for x
    x = 573,142,497,796.94/897,923.70
  6. Step 6: Final answer
    x = 638,297.55

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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.