Home / 670,021.98-1,005,220.58-270,943.01

Finding the Fourth Proportional to 670,021.98, 1,005,220.58 and 270,943.01

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Solution

The fourth proportional to 670,021.98, 1,005,220.58 and 270,943.01 is: 406,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,021.98 : 1,005,220.58 = 270,943.01 : x
  2. Step 2: Convert to fraction form
    670,021.98/1,005,220.58 = 270,943.01/x
  3. Step 3: Cross multiply
    670,021.98x = 1,005,220.58 × 270,943.01
  4. Step 4: Simplify right side
    670,021.98x = 272,357,487,809.93
  5. Step 5: Solve for x
    x = 272,357,487,809.93/670,021.98
  6. Step 6: Final answer
    x = 406,490.37

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1.5x scale

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.