Home / 740,301.67-1,021,618.61-400,769.11

Finding the Fourth Proportional to 740,301.67, 1,021,618.61 and 400,769.11

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Solution

The fourth proportional to 740,301.67, 1,021,618.61 and 400,769.11 is: 553,062.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,301.67 : 1,021,618.61 = 400,769.11 : x
  2. Step 2: Convert to fraction form
    740,301.67/1,021,618.61 = 400,769.11/x
  3. Step 3: Cross multiply
    740,301.67x = 1,021,618.61 × 400,769.11
  4. Step 4: Simplify right side
    740,301.67x = 409,433,181,089.14
  5. Step 5: Solve for x
    x = 409,433,181,089.14/740,301.67
  6. Step 6: Final answer
    x = 553,062.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.