Home / 646,034.49-891,612.23-370,500.30

Finding the Fourth Proportional to 646,034.49, 891,612.23 and 370,500.30

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Solution

The fourth proportional to 646,034.49, 891,612.23 and 370,500.30 is: 511,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,034.49 : 891,612.23 = 370,500.30 : x
  2. Step 2: Convert to fraction form
    646,034.49/891,612.23 = 370,500.30/x
  3. Step 3: Cross multiply
    646,034.49x = 891,612.23 × 370,500.30
  4. Step 4: Simplify right side
    646,034.49x = 330,342,596,846.17
  5. Step 5: Solve for x
    x = 330,342,596,846.17/646,034.49
  6. Step 6: Final answer
    x = 511,338.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.