Home / 785,141.55-1,176,724.49-425,298.65

Finding the Fourth Proportional to 785,141.55, 1,176,724.49 and 425,298.65

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Solution

The fourth proportional to 785,141.55, 1,176,724.49 and 425,298.65 is: 637,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,141.55 : 1,176,724.49 = 425,298.65 : x
  2. Step 2: Convert to fraction form
    785,141.55/1,176,724.49 = 425,298.65/x
  3. Step 3: Cross multiply
    785,141.55x = 1,176,724.49 × 425,298.65
  4. Step 4: Simplify right side
    785,141.55x = 500,459,329,008.82
  5. Step 5: Solve for x
    x = 500,459,329,008.82/785,141.55
  6. Step 6: Final answer
    x = 637,412.87

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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.