Home / 785,618.61-1,084,123.17-480,206.36

Finding the Fourth Proportional to 785,618.61, 1,084,123.17 and 480,206.36

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Solution

The fourth proportional to 785,618.61, 1,084,123.17 and 480,206.36 is: 662,666.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,618.61 : 1,084,123.17 = 480,206.36 : x
  2. Step 2: Convert to fraction form
    785,618.61/1,084,123.17 = 480,206.36/x
  3. Step 3: Cross multiply
    785,618.61x = 1,084,123.17 × 480,206.36
  4. Step 4: Simplify right side
    785,618.61x = 520,602,835,836.75
  5. Step 5: Solve for x
    x = 520,602,835,836.75/785,618.61
  6. Step 6: Final answer
    x = 662,666.12

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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.