Home / 1,186,139.70-1,636,990.02-676,918.62

Finding the Fourth Proportional to 1,186,139.70, 1,636,990.02 and 676,918.62

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Solution

The fourth proportional to 1,186,139.70, 1,636,990.02 and 676,918.62 is: 934,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,139.70 : 1,636,990.02 = 676,918.62 : x
  2. Step 2: Convert to fraction form
    1,186,139.70/1,636,990.02 = 676,918.62/x
  3. Step 3: Cross multiply
    1,186,139.70x = 1,636,990.02 × 676,918.62
  4. Step 4: Simplify right side
    1,186,139.70x = 1,108,109,025,292.17
  5. Step 5: Solve for x
    x = 1,108,109,025,292.17/1,186,139.70
  6. Step 6: Final answer
    x = 934,214.60

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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.