Home / 880,776.64-1,215,431.08-498,806.17

Finding the Fourth Proportional to 880,776.64, 1,215,431.08 and 498,806.17

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Solution

The fourth proportional to 880,776.64, 1,215,431.08 and 498,806.17 is: 688,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,776.64 : 1,215,431.08 = 498,806.17 : x
  2. Step 2: Convert to fraction form
    880,776.64/1,215,431.08 = 498,806.17/x
  3. Step 3: Cross multiply
    880,776.64x = 1,215,431.08 × 498,806.17
  4. Step 4: Simplify right side
    880,776.64x = 606,264,521,913.76
  5. Step 5: Solve for x
    x = 606,264,521,913.76/880,776.64
  6. Step 6: Final answer
    x = 688,329.47

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Double scale
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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.