Home / 874,121.60-1,311,700.80-575,458.40

Finding the Fourth Proportional to 874,121.60, 1,311,700.80 and 575,458.40

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Solution

The fourth proportional to 874,121.60, 1,311,700.80 and 575,458.40 is: 863,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,121.60 : 1,311,700.80 = 575,458.40 : x
  2. Step 2: Convert to fraction form
    874,121.60/1,311,700.80 = 575,458.40/x
  3. Step 3: Cross multiply
    874,121.60x = 1,311,700.80 × 575,458.40
  4. Step 4: Simplify right side
    874,121.60x = 754,829,243,646.72
  5. Step 5: Solve for x
    x = 754,829,243,646.72/874,121.60
  6. Step 6: Final answer
    x = 863,528.88

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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.