Home / 3,165,491.20-4,748,236.80-921,702.40

Finding the Fourth Proportional to 3,165,491.20, 4,748,236.80 and 921,702.40

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Solution

The fourth proportional to 3,165,491.20, 4,748,236.80 and 921,702.40 is: 1,382,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165,491.20 : 4,748,236.80 = 921,702.40 : x
  2. Step 2: Convert to fraction form
    3,165,491.20/4,748,236.80 = 921,702.40/x
  3. Step 3: Cross multiply
    3,165,491.20x = 4,748,236.80 × 921,702.40
  4. Step 4: Simplify right side
    3,165,491.20x = 4,376,461,254,328.32
  5. Step 5: Solve for x
    x = 4,376,461,254,328.32/3,165,491.20
  6. Step 6: Final answer
    x = 1,382,553.60

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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.