Home / 1,186,123.86-1,636,968.16-676,902.78

Finding the Fourth Proportional to 1,186,123.86, 1,636,968.16 and 676,902.78

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Solution

The fourth proportional to 1,186,123.86, 1,636,968.16 and 676,902.78 is: 934,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,123.86 : 1,636,968.16 = 676,902.78 : x
  2. Step 2: Convert to fraction form
    1,186,123.86/1,636,968.16 = 676,902.78/x
  3. Step 3: Cross multiply
    1,186,123.86x = 1,636,968.16 × 676,902.78
  4. Step 4: Simplify right side
    1,186,123.86x = 1,108,068,298,275.48
  5. Step 5: Solve for x
    x = 1,108,068,298,275.48/1,186,123.86
  6. Step 6: Final answer
    x = 934,192.74

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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.