Home / 389,323.20-583,984.80-365,703.60

Finding the Fourth Proportional to 389,323.20, 583,984.80 and 365,703.60

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Solution

The fourth proportional to 389,323.20, 583,984.80 and 365,703.60 is: 548,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,323.20 : 583,984.80 = 365,703.60 : x
  2. Step 2: Convert to fraction form
    389,323.20/583,984.80 = 365,703.60/x
  3. Step 3: Cross multiply
    389,323.20x = 583,984.80 × 365,703.60
  4. Step 4: Simplify right side
    389,323.20x = 213,565,343,705.28
  5. Step 5: Solve for x
    x = 213,565,343,705.28/389,323.20
  6. Step 6: Final answer
    x = 548,555.40

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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.