Home / 1,330,707.90-1,996,061.85-620,807.70

Finding the Fourth Proportional to 1,330,707.90, 1,996,061.85 and 620,807.70

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Solution

The fourth proportional to 1,330,707.90, 1,996,061.85 and 620,807.70 is: 931,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,707.90 : 1,996,061.85 = 620,807.70 : x
  2. Step 2: Convert to fraction form
    1,330,707.90/1,996,061.85 = 620,807.70/x
  3. Step 3: Cross multiply
    1,330,707.90x = 1,996,061.85 × 620,807.70
  4. Step 4: Simplify right side
    1,330,707.90x = 1,239,170,566,156.24
  5. Step 5: Solve for x
    x = 1,239,170,566,156.24/1,330,707.90
  6. Step 6: Final answer
    x = 931,211.55

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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.