Home / 740,042.90-1,021,262.28-400,511.12

Finding the Fourth Proportional to 740,042.90, 1,021,262.28 and 400,511.12

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Solution

The fourth proportional to 740,042.90, 1,021,262.28 and 400,511.12 is: 552,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,042.90 : 1,021,262.28 = 400,511.12 : x
  2. Step 2: Convert to fraction form
    740,042.90/1,021,262.28 = 400,511.12/x
  3. Step 3: Cross multiply
    740,042.90x = 1,021,262.28 × 400,511.12
  4. Step 4: Simplify right side
    740,042.90x = 409,026,899,576.55
  5. Step 5: Solve for x
    x = 409,026,899,576.55/740,042.90
  6. Step 6: Final answer
    x = 552,707.01

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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.