Home / 971,400.32-1,340,541.15-535,834.34

Finding the Fourth Proportional to 971,400.32, 1,340,541.15 and 535,834.34

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Solution

The fourth proportional to 971,400.32, 1,340,541.15 and 535,834.34 is: 739,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,400.32 : 1,340,541.15 = 535,834.34 : x
  2. Step 2: Convert to fraction form
    971,400.32/1,340,541.15 = 535,834.34/x
  3. Step 3: Cross multiply
    971,400.32x = 1,340,541.15 × 535,834.34
  4. Step 4: Simplify right side
    971,400.32x = 718,307,982,353.09
  5. Step 5: Solve for x
    x = 718,307,982,353.09/971,400.32
  6. Step 6: Final answer
    x = 739,456.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.