Home / 870,082.28-1,201,228.32-548,068.40

Finding the Fourth Proportional to 870,082.28, 1,201,228.32 and 548,068.40

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Solution

The fourth proportional to 870,082.28, 1,201,228.32 and 548,068.40 is: 756,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,082.28 : 1,201,228.32 = 548,068.40 : x
  2. Step 2: Convert to fraction form
    870,082.28/1,201,228.32 = 548,068.40/x
  3. Step 3: Cross multiply
    870,082.28x = 1,201,228.32 × 548,068.40
  4. Step 4: Simplify right side
    870,082.28x = 658,355,283,377.09
  5. Step 5: Solve for x
    x = 658,355,283,377.09/870,082.28
  6. Step 6: Final answer
    x = 756,658.65

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1.5x scale

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.