Home / 1,281,157.76-1,768,008.30-708,207.50

Finding the Fourth Proportional to 1,281,157.76, 1,768,008.30 and 708,207.50

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Solution

The fourth proportional to 1,281,157.76, 1,768,008.30 and 708,207.50 is: 977,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,157.76 : 1,768,008.30 = 708,207.50 : x
  2. Step 2: Convert to fraction form
    1,281,157.76/1,768,008.30 = 708,207.50/x
  3. Step 3: Cross multiply
    1,281,157.76x = 1,768,008.30 × 708,207.50
  4. Step 4: Simplify right side
    1,281,157.76x = 1,252,116,738,122.25
  5. Step 5: Solve for x
    x = 1,252,116,738,122.25/1,281,157.76
  6. Step 6: Final answer
    x = 977,332.20

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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.