Home / 876,005.20-1,314,007.80-501,720.40

Finding the Fourth Proportional to 876,005.20, 1,314,007.80 and 501,720.40

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Solution

The fourth proportional to 876,005.20, 1,314,007.80 and 501,720.40 is: 752,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,005.20 : 1,314,007.80 = 501,720.40 : x
  2. Step 2: Convert to fraction form
    876,005.20/1,314,007.80 = 501,720.40/x
  3. Step 3: Cross multiply
    876,005.20x = 1,314,007.80 × 501,720.40
  4. Step 4: Simplify right side
    876,005.20x = 659,264,519,019.12
  5. Step 5: Solve for x
    x = 659,264,519,019.12/876,005.20
  6. Step 6: Final answer
    x = 752,580.60

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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.