Home / 972,001.70-1,458,002.55-262,004.30

Finding the Fourth Proportional to 972,001.70, 1,458,002.55 and 262,004.30

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Solution

The fourth proportional to 972,001.70, 1,458,002.55 and 262,004.30 is: 393,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,001.70 : 1,458,002.55 = 262,004.30 : x
  2. Step 2: Convert to fraction form
    972,001.70/1,458,002.55 = 262,004.30/x
  3. Step 3: Cross multiply
    972,001.70x = 1,458,002.55 × 262,004.30
  4. Step 4: Simplify right side
    972,001.70x = 382,002,937,510.97
  5. Step 5: Solve for x
    x = 382,002,937,510.97/972,001.70
  6. Step 6: Final answer
    x = 393,006.45

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Double scale
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Similar ratio
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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.