Home / 662,123.19-913,666.80-371,668.20

Finding the Fourth Proportional to 662,123.19, 913,666.80 and 371,668.20

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Solution

The fourth proportional to 662,123.19, 913,666.80 and 371,668.20 is: 512,866.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,123.19 : 913,666.80 = 371,668.20 : x
  2. Step 2: Convert to fraction form
    662,123.19/913,666.80 = 371,668.20/x
  3. Step 3: Cross multiply
    662,123.19x = 913,666.80 × 371,668.20
  4. Step 4: Simplify right side
    662,123.19x = 339,580,894,955.76
  5. Step 5: Solve for x
    x = 339,580,894,955.76/662,123.19
  6. Step 6: Final answer
    x = 512,866.64

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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.