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Finding the Fourth Proportional to 495,085.44, 742,075.20 and 455,229.12

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Solution

The fourth proportional to 495,085.44, 742,075.20 and 455,229.12 is: 682,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,085.44 : 742,075.20 = 455,229.12 : x
  2. Step 2: Convert to fraction form
    495,085.44/742,075.20 = 455,229.12/x
  3. Step 3: Cross multiply
    495,085.44x = 742,075.20 × 455,229.12
  4. Step 4: Simplify right side
    495,085.44x = 337,814,240,269.82
  5. Step 5: Solve for x
    x = 337,814,240,269.82/495,085.44
  6. Step 6: Final answer
    x = 682,335.24

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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.