Home / 918,117.60-1,377,176.40-782,304.90

Finding the Fourth Proportional to 918,117.60, 1,377,176.40 and 782,304.90

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Solution

The fourth proportional to 918,117.60, 1,377,176.40 and 782,304.90 is: 1,173,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,117.60 : 1,377,176.40 = 782,304.90 : x
  2. Step 2: Convert to fraction form
    918,117.60/1,377,176.40 = 782,304.90/x
  3. Step 3: Cross multiply
    918,117.60x = 1,377,176.40 × 782,304.90
  4. Step 4: Simplify right side
    918,117.60x = 1,077,371,845,884.36
  5. Step 5: Solve for x
    x = 1,077,371,845,884.36/918,117.60
  6. Step 6: Final answer
    x = 1,173,457.35

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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.