Home / 715,265.80-1,072,023.90-315,482.20

Finding the Fourth Proportional to 715,265.80, 1,072,023.90 and 315,482.20

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Solution

The fourth proportional to 715,265.80, 1,072,023.90 and 315,482.20 is: 472,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,265.80 : 1,072,023.90 = 315,482.20 : x
  2. Step 2: Convert to fraction form
    715,265.80/1,072,023.90 = 315,482.20/x
  3. Step 3: Cross multiply
    715,265.80x = 1,072,023.90 × 315,482.20
  4. Step 4: Simplify right side
    715,265.80x = 338,204,458,424.58
  5. Step 5: Solve for x
    x = 338,204,458,424.58/715,265.80
  6. Step 6: Final answer
    x = 472,837.45

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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.