Home / 997,360.80-1,496,041.20-920,378.40

Finding the Fourth Proportional to 997,360.80, 1,496,041.20 and 920,378.40

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Solution

The fourth proportional to 997,360.80, 1,496,041.20 and 920,378.40 is: 1,380,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,360.80 : 1,496,041.20 = 920,378.40 : x
  2. Step 2: Convert to fraction form
    997,360.80/1,496,041.20 = 920,378.40/x
  3. Step 3: Cross multiply
    997,360.80x = 1,496,041.20 × 920,378.40
  4. Step 4: Simplify right side
    997,360.80x = 1,376,924,005,990.08
  5. Step 5: Solve for x
    x = 1,376,924,005,990.08/997,360.80
  6. Step 6: Final answer
    x = 1,380,567.60

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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.