Home / 740,079.90-1,021,310.24-400,548.16

Finding the Fourth Proportional to 740,079.90, 1,021,310.24 and 400,548.16

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Solution

The fourth proportional to 740,079.90, 1,021,310.24 and 400,548.16 is: 552,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,079.90 : 1,021,310.24 = 400,548.16 : x
  2. Step 2: Convert to fraction form
    740,079.90/1,021,310.24 = 400,548.16/x
  3. Step 3: Cross multiply
    740,079.90x = 1,021,310.24 × 400,548.16
  4. Step 4: Simplify right side
    740,079.90x = 409,083,937,421.16
  5. Step 5: Solve for x
    x = 409,083,937,421.16/740,079.90
  6. Step 6: Final answer
    x = 552,756.45

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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.