Home / 652,170.40-977,089.20-402,560.80

Finding the Fourth Proportional to 652,170.40, 977,089.20 and 402,560.80

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Solution

The fourth proportional to 652,170.40, 977,089.20 and 402,560.80 is: 603,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,170.40 : 977,089.20 = 402,560.80 : x
  2. Step 2: Convert to fraction form
    652,170.40/977,089.20 = 402,560.80/x
  3. Step 3: Cross multiply
    652,170.40x = 977,089.20 × 402,560.80
  4. Step 4: Simplify right side
    652,170.40x = 393,337,810,023.36
  5. Step 5: Solve for x
    x = 393,337,810,023.36/652,170.40
  6. Step 6: Final answer
    x = 603,121.22

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1.5x scale

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.