Home / 890,397.20-1,228,745.76-482,510.36

Finding the Fourth Proportional to 890,397.20, 1,228,745.76 and 482,510.36

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Solution

The fourth proportional to 890,397.20, 1,228,745.76 and 482,510.36 is: 665,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,397.20 : 1,228,745.76 = 482,510.36 : x
  2. Step 2: Convert to fraction form
    890,397.20/1,228,745.76 = 482,510.36/x
  3. Step 3: Cross multiply
    890,397.20x = 1,228,745.76 × 482,510.36
  4. Step 4: Simplify right side
    890,397.20x = 592,882,559,006.07
  5. Step 5: Solve for x
    x = 592,882,559,006.07/890,397.20
  6. Step 6: Final answer
    x = 665,863.01

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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.