Home / 716,769.36-988,730.24-448,030.80

Finding the Fourth Proportional to 716,769.36, 988,730.24 and 448,030.80

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Solution

The fourth proportional to 716,769.36, 988,730.24 and 448,030.80 is: 618,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,769.36 : 988,730.24 = 448,030.80 : x
  2. Step 2: Convert to fraction form
    716,769.36/988,730.24 = 448,030.80/x
  3. Step 3: Cross multiply
    716,769.36x = 988,730.24 × 448,030.80
  4. Step 4: Simplify right side
    716,769.36x = 442,981,600,411.39
  5. Step 5: Solve for x
    x = 442,981,600,411.39/716,769.36
  6. Step 6: Final answer
    x = 618,025.30

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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.