Home / 868,082.40-1,302,123.60-553,154.40

Finding the Fourth Proportional to 868,082.40, 1,302,123.60 and 553,154.40

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Solution

The fourth proportional to 868,082.40, 1,302,123.60 and 553,154.40 is: 829,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,082.40 : 1,302,123.60 = 553,154.40 : x
  2. Step 2: Convert to fraction form
    868,082.40/1,302,123.60 = 553,154.40/x
  3. Step 3: Cross multiply
    868,082.40x = 1,302,123.60 × 553,154.40
  4. Step 4: Simplify right side
    868,082.40x = 720,275,398,683.84
  5. Step 5: Solve for x
    x = 720,275,398,683.84/868,082.40
  6. Step 6: Final answer
    x = 829,731.60

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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.