Home / 1,291,287.40-1,935,702.30-1,006,820.20

Finding the Fourth Proportional to 1,291,287.40, 1,935,702.30 and 1,006,820.20

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Solution

The fourth proportional to 1,291,287.40, 1,935,702.30 and 1,006,820.20 is: 1,509,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,287.40 : 1,935,702.30 = 1,006,820.20 : x
  2. Step 2: Convert to fraction form
    1,291,287.40/1,935,702.30 = 1,006,820.20/x
  3. Step 3: Cross multiply
    1,291,287.40x = 1,935,702.30 × 1,006,820.20
  4. Step 4: Simplify right side
    1,291,287.40x = 1,948,904,176,826.46
  5. Step 5: Solve for x
    x = 1,948,904,176,826.46/1,291,287.40
  6. Step 6: Final answer
    x = 1,509,272.20

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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.