Home / 869,621.40-1,304,432.10-745,205.40

Finding the Fourth Proportional to 869,621.40, 1,304,432.10 and 745,205.40

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Solution

The fourth proportional to 869,621.40, 1,304,432.10 and 745,205.40 is: 1,117,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,621.40 : 1,304,432.10 = 745,205.40 : x
  2. Step 2: Convert to fraction form
    869,621.40/1,304,432.10 = 745,205.40/x
  3. Step 3: Cross multiply
    869,621.40x = 1,304,432.10 × 745,205.40
  4. Step 4: Simplify right side
    869,621.40x = 972,069,844,853.34
  5. Step 5: Solve for x
    x = 972,069,844,853.34/869,621.40
  6. Step 6: Final answer
    x = 1,117,808.10

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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.