Home / 740,031.68-1,021,243.74-400,499.93

Finding the Fourth Proportional to 740,031.68, 1,021,243.74 and 400,499.93

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Solution

The fourth proportional to 740,031.68, 1,021,243.74 and 400,499.93 is: 552,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,031.68 : 1,021,243.74 = 400,499.93 : x
  2. Step 2: Convert to fraction form
    740,031.68/1,021,243.74 = 400,499.93/x
  3. Step 3: Cross multiply
    740,031.68x = 1,021,243.74 × 400,499.93
  4. Step 4: Simplify right side
    740,031.68x = 409,008,046,382.94
  5. Step 5: Solve for x
    x = 409,008,046,382.94/740,031.68
  6. Step 6: Final answer
    x = 552,689.92

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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.