Home / 747,003.35-1,121,671.43-432,075.35

Finding the Fourth Proportional to 747,003.35, 1,121,671.43 and 432,075.35

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Solution

The fourth proportional to 747,003.35, 1,121,671.43 and 432,075.35 is: 648,787.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,003.35 : 1,121,671.43 = 432,075.35 : x
  2. Step 2: Convert to fraction form
    747,003.35/1,121,671.43 = 432,075.35/x
  3. Step 3: Cross multiply
    747,003.35x = 1,121,671.43 × 432,075.35
  4. Step 4: Simplify right side
    747,003.35x = 484,646,573,541.87
  5. Step 5: Solve for x
    x = 484,646,573,541.87/747,003.35
  6. Step 6: Final answer
    x = 648,787.68

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Double scale
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Similar ratio
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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.