Home / 906,541.38-1,251,000.99-498,643.20

Finding the Fourth Proportional to 906,541.38, 1,251,000.99 and 498,643.20

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Solution

The fourth proportional to 906,541.38, 1,251,000.99 and 498,643.20 is: 688,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,541.38 : 1,251,000.99 = 498,643.20 : x
  2. Step 2: Convert to fraction form
    906,541.38/1,251,000.99 = 498,643.20/x
  3. Step 3: Cross multiply
    906,541.38x = 1,251,000.99 × 498,643.20
  4. Step 4: Simplify right side
    906,541.38x = 623,803,136,856.77
  5. Step 5: Solve for x
    x = 623,803,136,856.77/906,541.38
  6. Step 6: Final answer
    x = 688,113.25

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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.