Home / 1,223,549.30-1,688,768.10-679,871.96

Finding the Fourth Proportional to 1,223,549.30, 1,688,768.10 and 679,871.96

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Solution

The fourth proportional to 1,223,549.30, 1,688,768.10 and 679,871.96 is: 938,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,549.30 : 1,688,768.10 = 679,871.96 : x
  2. Step 2: Convert to fraction form
    1,223,549.30/1,688,768.10 = 679,871.96/x
  3. Step 3: Cross multiply
    1,223,549.30x = 1,688,768.10 × 679,871.96
  4. Step 4: Simplify right side
    1,223,549.30x = 1,148,146,078,132.48
  5. Step 5: Solve for x
    x = 1,148,146,078,132.48/1,223,549.30
  6. Step 6: Final answer
    x = 938,373.37

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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.