Home / 842,853.40-1,163,042.22-498,699.88

Finding the Fourth Proportional to 842,853.40, 1,163,042.22 and 498,699.88

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Solution

The fourth proportional to 842,853.40, 1,163,042.22 and 498,699.88 is: 688,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,853.40 : 1,163,042.22 = 498,699.88 : x
  2. Step 2: Convert to fraction form
    842,853.40/1,163,042.22 = 498,699.88/x
  3. Step 3: Cross multiply
    842,853.40x = 1,163,042.22 × 498,699.88
  4. Step 4: Simplify right side
    842,853.40x = 580,009,015,548.93
  5. Step 5: Solve for x
    x = 580,009,015,548.93/842,853.40
  6. Step 6: Final answer
    x = 688,149.35

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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.