Home / 918,111.60-1,377,167.40-771,145.20

Finding the Fourth Proportional to 918,111.60, 1,377,167.40 and 771,145.20

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Solution

The fourth proportional to 918,111.60, 1,377,167.40 and 771,145.20 is: 1,156,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,111.60 : 1,377,167.40 = 771,145.20 : x
  2. Step 2: Convert to fraction form
    918,111.60/1,377,167.40 = 771,145.20/x
  3. Step 3: Cross multiply
    918,111.60x = 1,377,167.40 × 771,145.20
  4. Step 4: Simplify right side
    918,111.60x = 1,061,996,030,106.48
  5. Step 5: Solve for x
    x = 1,061,996,030,106.48/918,111.60
  6. Step 6: Final answer
    x = 1,156,717.80

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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.