Home / 626,785.28-864,954.78-340,316.36

Finding the Fourth Proportional to 626,785.28, 864,954.78 and 340,316.36

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Solution

The fourth proportional to 626,785.28, 864,954.78 and 340,316.36 is: 469,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,785.28 : 864,954.78 = 340,316.36 : x
  2. Step 2: Convert to fraction form
    626,785.28/864,954.78 = 340,316.36/x
  3. Step 3: Cross multiply
    626,785.28x = 864,954.78 × 340,316.36
  4. Step 4: Simplify right side
    626,785.28x = 294,358,262,294.20
  5. Step 5: Solve for x
    x = 294,358,262,294.20/626,785.28
  6. Step 6: Final answer
    x = 469,631.74

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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.