Home / 916,641.18-1,264,945.80-508,719.34

Finding the Fourth Proportional to 916,641.18, 1,264,945.80 and 508,719.34

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Solution

The fourth proportional to 916,641.18, 1,264,945.80 and 508,719.34 is: 702,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,641.18 : 1,264,945.80 = 508,719.34 : x
  2. Step 2: Convert to fraction form
    916,641.18/1,264,945.80 = 508,719.34/x
  3. Step 3: Cross multiply
    916,641.18x = 1,264,945.80 × 508,719.34
  4. Step 4: Simplify right side
    916,641.18x = 643,502,392,511.77
  5. Step 5: Solve for x
    x = 643,502,392,511.77/916,641.18
  6. Step 6: Final answer
    x = 702,022.13

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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.