Home / 670,220.80-1,005,136.80-243,707.20

Finding the Fourth Proportional to 670,220.80, 1,005,136.80 and 243,707.20

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Solution

The fourth proportional to 670,220.80, 1,005,136.80 and 243,707.20 is: 365,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,220.80 : 1,005,136.80 = 243,707.20 : x
  2. Step 2: Convert to fraction form
    670,220.80/1,005,136.80 = 243,707.20/x
  3. Step 3: Cross multiply
    670,220.80x = 1,005,136.80 × 243,707.20
  4. Step 4: Simplify right side
    670,220.80x = 244,959,075,144.96
  5. Step 5: Solve for x
    x = 244,959,075,144.96/670,220.80
  6. Step 6: Final answer
    x = 365,490.11

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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.