Home / 1,432,280-1,976,596.08-787,748.96

Finding the Fourth Proportional to 1,432,280, 1,976,596.08 and 787,748.96

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Solution

The fourth proportional to 1,432,280, 1,976,596.08 and 787,748.96 is: 1,087,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,280 : 1,976,596.08 = 787,748.96 : x
  2. Step 2: Convert to fraction form
    1,432,280/1,976,596.08 = 787,748.96/x
  3. Step 3: Cross multiply
    1,432,280x = 1,976,596.08 × 787,748.96
  4. Step 4: Simplify right side
    1,432,280x = 1,557,061,506,360.08
  5. Step 5: Solve for x
    x = 1,557,061,506,360.08/1,432,280
  6. Step 6: Final answer
    x = 1,087,120.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.