Home / 948,675.70-1,309,161.85-518,950.72

Finding the Fourth Proportional to 948,675.70, 1,309,161.85 and 518,950.72

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Solution

The fourth proportional to 948,675.70, 1,309,161.85 and 518,950.72 is: 716,146.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,675.70 : 1,309,161.85 = 518,950.72 : x
  2. Step 2: Convert to fraction form
    948,675.70/1,309,161.85 = 518,950.72/x
  3. Step 3: Cross multiply
    948,675.70x = 1,309,161.85 × 518,950.72
  4. Step 4: Simplify right side
    948,675.70x = 679,390,484,654.03
  5. Step 5: Solve for x
    x = 679,390,484,654.03/948,675.70
  6. Step 6: Final answer
    x = 716,146.19

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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.