Home / 683,139.40-1,025,365.20-346,560.10

Finding the Fourth Proportional to 683,139.40, 1,025,365.20 and 346,560.10

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Solution

The fourth proportional to 683,139.40, 1,025,365.20 and 346,560.10 is: 520,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,139.40 : 1,025,365.20 = 346,560.10 : x
  2. Step 2: Convert to fraction form
    683,139.40/1,025,365.20 = 346,560.10/x
  3. Step 3: Cross multiply
    683,139.40x = 1,025,365.20 × 346,560.10
  4. Step 4: Simplify right side
    683,139.40x = 355,350,666,248.52
  5. Step 5: Solve for x
    x = 355,350,666,248.52/683,139.40
  6. Step 6: Final answer
    x = 520,172.99

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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.