Home / 634,890.46-876,159.48-348,437.20

Finding the Fourth Proportional to 634,890.46, 876,159.48 and 348,437.20

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Solution

The fourth proportional to 634,890.46, 876,159.48 and 348,437.20 is: 480,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,890.46 : 876,159.48 = 348,437.20 : x
  2. Step 2: Convert to fraction form
    634,890.46/876,159.48 = 348,437.20/x
  3. Step 3: Cross multiply
    634,890.46x = 876,159.48 × 348,437.20
  4. Step 4: Simplify right side
    634,890.46x = 305,286,555,964.66
  5. Step 5: Solve for x
    x = 305,286,555,964.66/634,890.46
  6. Step 6: Final answer
    x = 480,849.18

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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.