Home / 448,416.12-671,876.83-315,057.63

Finding the Fourth Proportional to 448,416.12, 671,876.83 and 315,057.63

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Solution

The fourth proportional to 448,416.12, 671,876.83 and 315,057.63 is: 472,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,416.12 : 671,876.83 = 315,057.63 : x
  2. Step 2: Convert to fraction form
    448,416.12/671,876.83 = 315,057.63/x
  3. Step 3: Cross multiply
    448,416.12x = 671,876.83 × 315,057.63
  4. Step 4: Simplify right side
    448,416.12x = 211,679,921,711.71
  5. Step 5: Solve for x
    x = 211,679,921,711.71/448,416.12
  6. Step 6: Final answer
    x = 472,061.36

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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.