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Finding the Fourth Proportional to 880,280.80, 1,319,254.80 and 779,970.40

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Solution

The fourth proportional to 880,280.80, 1,319,254.80 and 779,970.40 is: 1,168,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,280.80 : 1,319,254.80 = 779,970.40 : x
  2. Step 2: Convert to fraction form
    880,280.80/1,319,254.80 = 779,970.40/x
  3. Step 3: Cross multiply
    880,280.80x = 1,319,254.80 × 779,970.40
  4. Step 4: Simplify right side
    880,280.80x = 1,028,979,694,057.92
  5. Step 5: Solve for x
    x = 1,028,979,694,057.92/880,280.80
  6. Step 6: Final answer
    x = 1,168,922.11

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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.