Home / 779,718.80-1,169,748.30-442,920.80

Finding the Fourth Proportional to 779,718.80, 1,169,748.30 and 442,920.80

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Solution

The fourth proportional to 779,718.80, 1,169,748.30 and 442,920.80 is: 664,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,718.80 : 1,169,748.30 = 442,920.80 : x
  2. Step 2: Convert to fraction form
    779,718.80/1,169,748.30 = 442,920.80/x
  3. Step 3: Cross multiply
    779,718.80x = 1,169,748.30 × 442,920.80
  4. Step 4: Simplify right side
    779,718.80x = 518,105,852,834.64
  5. Step 5: Solve for x
    x = 518,105,852,834.64/779,718.80
  6. Step 6: Final answer
    x = 664,477.83

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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.