Home / 926,754.30-1,390,131.45-727,688.70

Finding the Fourth Proportional to 926,754.30, 1,390,131.45 and 727,688.70

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Solution

The fourth proportional to 926,754.30, 1,390,131.45 and 727,688.70 is: 1,091,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,754.30 : 1,390,131.45 = 727,688.70 : x
  2. Step 2: Convert to fraction form
    926,754.30/1,390,131.45 = 727,688.70/x
  3. Step 3: Cross multiply
    926,754.30x = 1,390,131.45 × 727,688.70
  4. Step 4: Simplify right side
    926,754.30x = 1,011,582,947,679.61
  5. Step 5: Solve for x
    x = 1,011,582,947,679.61/926,754.30
  6. Step 6: Final answer
    x = 1,091,533.05

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Double scale
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Similar ratio
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1.5x scale

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.