Home / 885,100.71-1,221,437.19-497,916.41

Finding the Fourth Proportional to 885,100.71, 1,221,437.19 and 497,916.41

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Solution

The fourth proportional to 885,100.71, 1,221,437.19 and 497,916.41 is: 687,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,100.71 : 1,221,437.19 = 497,916.41 : x
  2. Step 2: Convert to fraction form
    885,100.71/1,221,437.19 = 497,916.41/x
  3. Step 3: Cross multiply
    885,100.71x = 1,221,437.19 × 497,916.41
  4. Step 4: Simplify right side
    885,100.71x = 608,173,614,578.10
  5. Step 5: Solve for x
    x = 608,173,614,578.10/885,100.71
  6. Step 6: Final answer
    x = 687,123.63

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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.