Home / 873,862.20-1,310,793.30-518,693.40

Finding the Fourth Proportional to 873,862.20, 1,310,793.30 and 518,693.40

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Solution

The fourth proportional to 873,862.20, 1,310,793.30 and 518,693.40 is: 778,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,862.20 : 1,310,793.30 = 518,693.40 : x
  2. Step 2: Convert to fraction form
    873,862.20/1,310,793.30 = 518,693.40/x
  3. Step 3: Cross multiply
    873,862.20x = 1,310,793.30 × 518,693.40
  4. Step 4: Simplify right side
    873,862.20x = 679,899,833,474.22
  5. Step 5: Solve for x
    x = 679,899,833,474.22/873,862.20
  6. Step 6: Final answer
    x = 778,040.10

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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.