Home / 877,665.52-1,211,182.90-490,487.41

Finding the Fourth Proportional to 877,665.52, 1,211,182.90 and 490,487.41

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Solution

The fourth proportional to 877,665.52, 1,211,182.90 and 490,487.41 is: 676,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,665.52 : 1,211,182.90 = 490,487.41 : x
  2. Step 2: Convert to fraction form
    877,665.52/1,211,182.90 = 490,487.41/x
  3. Step 3: Cross multiply
    877,665.52x = 1,211,182.90 × 490,487.41
  4. Step 4: Simplify right side
    877,665.52x = 594,069,960,917.09
  5. Step 5: Solve for x
    x = 594,069,960,917.09/877,665.52
  6. Step 6: Final answer
    x = 676,875.13

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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.