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Finding the Fourth Proportional to 779,510.76, 1,169,298.66 and 247,020

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Solution

The fourth proportional to 779,510.76, 1,169,298.66 and 247,020 is: 370,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,510.76 : 1,169,298.66 = 247,020 : x
  2. Step 2: Convert to fraction form
    779,510.76/1,169,298.66 = 247,020/x
  3. Step 3: Cross multiply
    779,510.76x = 1,169,298.66 × 247,020
  4. Step 4: Simplify right side
    779,510.76x = 288,840,154,993.20
  5. Step 5: Solve for x
    x = 288,840,154,993.20/779,510.76
  6. Step 6: Final answer
    x = 370,540.31

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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.