Home / 917,614.40-1,376,421.60-243,799.70

Finding the Fourth Proportional to 917,614.40, 1,376,421.60 and 243,799.70

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Solution

The fourth proportional to 917,614.40, 1,376,421.60 and 243,799.70 is: 365,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,614.40 : 1,376,421.60 = 243,799.70 : x
  2. Step 2: Convert to fraction form
    917,614.40/1,376,421.60 = 243,799.70/x
  3. Step 3: Cross multiply
    917,614.40x = 1,376,421.60 × 243,799.70
  4. Step 4: Simplify right side
    917,614.40x = 335,571,173,153.52
  5. Step 5: Solve for x
    x = 335,571,173,153.52/917,614.40
  6. Step 6: Final answer
    x = 365,699.55

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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.