Home / 879,002.70-1,315,004.85-761,973.90

Finding the Fourth Proportional to 879,002.70, 1,315,004.85 and 761,973.90

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Solution

The fourth proportional to 879,002.70, 1,315,004.85 and 761,973.90 is: 1,139,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,002.70 : 1,315,004.85 = 761,973.90 : x
  2. Step 2: Convert to fraction form
    879,002.70/1,315,004.85 = 761,973.90/x
  3. Step 3: Cross multiply
    879,002.70x = 1,315,004.85 × 761,973.90
  4. Step 4: Simplify right side
    879,002.70x = 1,001,999,374,073.42
  5. Step 5: Solve for x
    x = 1,001,999,374,073.42/879,002.70
  6. Step 6: Final answer
    x = 1,139,927.53

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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.