Home / 830,471.45-1,246,482.12-425,967.36

Finding the Fourth Proportional to 830,471.45, 1,246,482.12 and 425,967.36

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Solution

The fourth proportional to 830,471.45, 1,246,482.12 and 425,967.36 is: 639,348.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,471.45 : 1,246,482.12 = 425,967.36 : x
  2. Step 2: Convert to fraction form
    830,471.45/1,246,482.12 = 425,967.36/x
  3. Step 3: Cross multiply
    830,471.45x = 1,246,482.12 × 425,967.36
  4. Step 4: Simplify right side
    830,471.45x = 530,960,692,470.61
  5. Step 5: Solve for x
    x = 530,960,692,470.61/830,471.45
  6. Step 6: Final answer
    x = 639,348.52

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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.