Home / 1,329,287.80-1,993,931.70-487,730.20

Finding the Fourth Proportional to 1,329,287.80, 1,993,931.70 and 487,730.20

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Solution

The fourth proportional to 1,329,287.80, 1,993,931.70 and 487,730.20 is: 731,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,287.80 : 1,993,931.70 = 487,730.20 : x
  2. Step 2: Convert to fraction form
    1,329,287.80/1,993,931.70 = 487,730.20/x
  3. Step 3: Cross multiply
    1,329,287.80x = 1,993,931.70 × 487,730.20
  4. Step 4: Simplify right side
    1,329,287.80x = 972,500,706,827.34
  5. Step 5: Solve for x
    x = 972,500,706,827.34/1,329,287.80
  6. Step 6: Final answer
    x = 731,595.30

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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.