Home / 1,207,957.50-1,666,938.89-664,089.34

Finding the Fourth Proportional to 1,207,957.50, 1,666,938.89 and 664,089.34

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Solution

The fourth proportional to 1,207,957.50, 1,666,938.89 and 664,089.34 is: 916,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,957.50 : 1,666,938.89 = 664,089.34 : x
  2. Step 2: Convert to fraction form
    1,207,957.50/1,666,938.89 = 664,089.34/x
  3. Step 3: Cross multiply
    1,207,957.50x = 1,666,938.89 × 664,089.34
  4. Step 4: Simplify right side
    1,207,957.50x = 1,106,996,347,280.43
  5. Step 5: Solve for x
    x = 1,106,996,347,280.43/1,207,957.50
  6. Step 6: Final answer
    x = 916,419.95

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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.