Home / 877,633.78-1,316,926.95-372,478.90

Finding the Fourth Proportional to 877,633.78, 1,316,926.95 and 372,478.90

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Solution

The fourth proportional to 877,633.78, 1,316,926.95 and 372,478.90 is: 558,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,633.78 : 1,316,926.95 = 372,478.90 : x
  2. Step 2: Convert to fraction form
    877,633.78/1,316,926.95 = 372,478.90/x
  3. Step 3: Cross multiply
    877,633.78x = 1,316,926.95 × 372,478.90
  4. Step 4: Simplify right side
    877,633.78x = 490,527,501,716.36
  5. Step 5: Solve for x
    x = 490,527,501,716.36/877,633.78
  6. Step 6: Final answer
    x = 558,920.49

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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.