Home / 1,245,646.19-1,718,991.72-672,686.30

Finding the Fourth Proportional to 1,245,646.19, 1,718,991.72 and 672,686.30

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Solution

The fourth proportional to 1,245,646.19, 1,718,991.72 and 672,686.30 is: 928,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,646.19 : 1,718,991.72 = 672,686.30 : x
  2. Step 2: Convert to fraction form
    1,245,646.19/1,718,991.72 = 672,686.30/x
  3. Step 3: Cross multiply
    1,245,646.19x = 1,718,991.72 × 672,686.30
  4. Step 4: Simplify right side
    1,245,646.19x = 1,156,342,184,154.92
  5. Step 5: Solve for x
    x = 1,156,342,184,154.92/1,245,646.19
  6. Step 6: Final answer
    x = 928,307.08

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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.