Home / 670,620.70-1,005,931.05-316,326.70

Finding the Fourth Proportional to 670,620.70, 1,005,931.05 and 316,326.70

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Solution

The fourth proportional to 670,620.70, 1,005,931.05 and 316,326.70 is: 474,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,620.70 : 1,005,931.05 = 316,326.70 : x
  2. Step 2: Convert to fraction form
    670,620.70/1,005,931.05 = 316,326.70/x
  3. Step 3: Cross multiply
    670,620.70x = 1,005,931.05 × 316,326.70
  4. Step 4: Simplify right side
    670,620.70x = 318,202,849,474.04
  5. Step 5: Solve for x
    x = 318,202,849,474.04/670,620.70
  6. Step 6: Final answer
    x = 474,490.05

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Similar ratio
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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.