Home / 860,615.80-1,290,923.70-723,758.20

Finding the Fourth Proportional to 860,615.80, 1,290,923.70 and 723,758.20

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Solution

The fourth proportional to 860,615.80, 1,290,923.70 and 723,758.20 is: 1,085,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,615.80 : 1,290,923.70 = 723,758.20 : x
  2. Step 2: Convert to fraction form
    860,615.80/1,290,923.70 = 723,758.20/x
  3. Step 3: Cross multiply
    860,615.80x = 1,290,923.70 × 723,758.20
  4. Step 4: Simplify right side
    860,615.80x = 934,316,613,449.34
  5. Step 5: Solve for x
    x = 934,316,613,449.34/860,615.80
  6. Step 6: Final answer
    x = 1,085,637.30

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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.