Home / 709,871.80-1,063,730.30-520,458.28

Finding the Fourth Proportional to 709,871.80, 1,063,730.30 and 520,458.28

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Solution

The fourth proportional to 709,871.80, 1,063,730.30 and 520,458.28 is: 779,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,871.80 : 1,063,730.30 = 520,458.28 : x
  2. Step 2: Convert to fraction form
    709,871.80/1,063,730.30 = 520,458.28/x
  3. Step 3: Cross multiply
    709,871.80x = 1,063,730.30 × 520,458.28
  4. Step 4: Simplify right side
    709,871.80x = 553,627,242,321.88
  5. Step 5: Solve for x
    x = 553,627,242,321.88/709,871.80
  6. Step 6: Final answer
    x = 779,897.50

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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.