Home / 1,230,423.80-1,845,290.10-389,233.40

Finding the Fourth Proportional to 1,230,423.80, 1,845,290.10 and 389,233.40

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Solution

The fourth proportional to 1,230,423.80, 1,845,290.10 and 389,233.40 is: 583,740.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,423.80 : 1,845,290.10 = 389,233.40 : x
  2. Step 2: Convert to fraction form
    1,230,423.80/1,845,290.10 = 389,233.40/x
  3. Step 3: Cross multiply
    1,230,423.80x = 1,845,290.10 × 389,233.40
  4. Step 4: Simplify right side
    1,230,423.80x = 718,248,539,609.34
  5. Step 5: Solve for x
    x = 718,248,539,609.34/1,230,423.80
  6. Step 6: Final answer
    x = 583,740.77

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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.