Home / 709,870.80-1,063,728.80-520,457.28

Finding the Fourth Proportional to 709,870.80, 1,063,728.80 and 520,457.28

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Solution

The fourth proportional to 709,870.80, 1,063,728.80 and 520,457.28 is: 779,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,870.80 : 1,063,728.80 = 520,457.28 : x
  2. Step 2: Convert to fraction form
    709,870.80/1,063,728.80 = 520,457.28/x
  3. Step 3: Cross multiply
    709,870.80x = 1,063,728.80 × 520,457.28
  4. Step 4: Simplify right side
    709,870.80x = 553,625,397,905.66
  5. Step 5: Solve for x
    x = 553,625,397,905.66/709,870.80
  6. Step 6: Final answer
    x = 779,896.00

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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.