Home / 821,472.17-1,133,609.45-448,920.36

Finding the Fourth Proportional to 821,472.17, 1,133,609.45 and 448,920.36

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Solution

The fourth proportional to 821,472.17, 1,133,609.45 and 448,920.36 is: 619,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,472.17 : 1,133,609.45 = 448,920.36 : x
  2. Step 2: Convert to fraction form
    821,472.17/1,133,609.45 = 448,920.36/x
  3. Step 3: Cross multiply
    821,472.17x = 1,133,609.45 × 448,920.36
  4. Step 4: Simplify right side
    821,472.17x = 508,900,360,148.80
  5. Step 5: Solve for x
    x = 508,900,360,148.80/821,472.17
  6. Step 6: Final answer
    x = 619,498.00

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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.