Home / 690,900.26-1,035,648.29-286,312.58

Finding the Fourth Proportional to 690,900.26, 1,035,648.29 and 286,312.58

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Solution

The fourth proportional to 690,900.26, 1,035,648.29 and 286,312.58 is: 429,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,900.26 : 1,035,648.29 = 286,312.58 : x
  2. Step 2: Convert to fraction form
    690,900.26/1,035,648.29 = 286,312.58/x
  3. Step 3: Cross multiply
    690,900.26x = 1,035,648.29 × 286,312.58
  4. Step 4: Simplify right side
    690,900.26x = 296,519,135,040.05
  5. Step 5: Solve for x
    x = 296,519,135,040.05/690,900.26
  6. Step 6: Final answer
    x = 429,177.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.