Home / 880,870.08-1,215,623.20-498,891.20

Finding the Fourth Proportional to 880,870.08, 1,215,623.20 and 498,891.20

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Solution

The fourth proportional to 880,870.08, 1,215,623.20 and 498,891.20 is: 688,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,870.08 : 1,215,623.20 = 498,891.20 : x
  2. Step 2: Convert to fraction form
    880,870.08/1,215,623.20 = 498,891.20/x
  3. Step 3: Cross multiply
    880,870.08x = 1,215,623.20 × 498,891.20
  4. Step 4: Simplify right side
    880,870.08x = 606,463,716,995.84
  5. Step 5: Solve for x
    x = 606,463,716,995.84/880,870.08
  6. Step 6: Final answer
    x = 688,482.59

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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.