Home / 778,973.10-1,168,848.45-442,272.30

Finding the Fourth Proportional to 778,973.10, 1,168,848.45 and 442,272.30

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Solution

The fourth proportional to 778,973.10, 1,168,848.45 and 442,272.30 is: 663,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,973.10 : 1,168,848.45 = 442,272.30 : x
  2. Step 2: Convert to fraction form
    778,973.10/1,168,848.45 = 442,272.30/x
  3. Step 3: Cross multiply
    778,973.10x = 1,168,848.45 × 442,272.30
  4. Step 4: Simplify right side
    778,973.10x = 516,949,292,332.94
  5. Step 5: Solve for x
    x = 516,949,292,332.94/778,973.10
  6. Step 6: Final answer
    x = 663,629.20

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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.