Home / 634,869.42-876,117.20-348,394.28

Finding the Fourth Proportional to 634,869.42, 876,117.20 and 348,394.28

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Solution

The fourth proportional to 634,869.42, 876,117.20 and 348,394.28 is: 480,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,869.42 : 876,117.20 = 348,394.28 : x
  2. Step 2: Convert to fraction form
    634,869.42/876,117.20 = 348,394.28/x
  3. Step 3: Cross multiply
    634,869.42x = 876,117.20 × 348,394.28
  4. Step 4: Simplify right side
    634,869.42x = 305,234,221,089.62
  5. Step 5: Solve for x
    x = 305,234,221,089.62/634,869.42
  6. Step 6: Final answer
    x = 480,782.68

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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.