Home / 917,357.70-1,376,036.55-243,437.70

Finding the Fourth Proportional to 917,357.70, 1,376,036.55 and 243,437.70

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Solution

The fourth proportional to 917,357.70, 1,376,036.55 and 243,437.70 is: 365,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,357.70 : 1,376,036.55 = 243,437.70 : x
  2. Step 2: Convert to fraction form
    917,357.70/1,376,036.55 = 243,437.70/x
  3. Step 3: Cross multiply
    917,357.70x = 1,376,036.55 × 243,437.70
  4. Step 4: Simplify right side
    917,357.70x = 334,979,172,847.94
  5. Step 5: Solve for x
    x = 334,979,172,847.94/917,357.70
  6. Step 6: Final answer
    x = 365,156.55

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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.