Home / 652,012.20-976,463.10-319,199.40

Finding the Fourth Proportional to 652,012.20, 976,463.10 and 319,199.40

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Solution

The fourth proportional to 652,012.20, 976,463.10 and 319,199.40 is: 478,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,012.20 : 976,463.10 = 319,199.40 : x
  2. Step 2: Convert to fraction form
    652,012.20/976,463.10 = 319,199.40/x
  3. Step 3: Cross multiply
    652,012.20x = 976,463.10 × 319,199.40
  4. Step 4: Simplify right side
    652,012.20x = 311,686,435,642.14
  5. Step 5: Solve for x
    x = 311,686,435,642.14/652,012.20
  6. Step 6: Final answer
    x = 478,037.74

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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.