Home / 405,001.10-607,501.65-272,290.70

Finding the Fourth Proportional to 405,001.10, 607,501.65 and 272,290.70

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Solution

The fourth proportional to 405,001.10, 607,501.65 and 272,290.70 is: 408,436.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,001.10 : 607,501.65 = 272,290.70 : x
  2. Step 2: Convert to fraction form
    405,001.10/607,501.65 = 272,290.70/x
  3. Step 3: Cross multiply
    405,001.10x = 607,501.65 × 272,290.70
  4. Step 4: Simplify right side
    405,001.10x = 165,417,049,529.66
  5. Step 5: Solve for x
    x = 165,417,049,529.66/405,001.10
  6. Step 6: Final answer
    x = 408,436.05

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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.