Home / 739,307.10-1,020,249.91-408,173.70

Finding the Fourth Proportional to 739,307.10, 1,020,249.91 and 408,173.70

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Solution

The fourth proportional to 739,307.10, 1,020,249.91 and 408,173.70 is: 563,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,307.10 : 1,020,249.91 = 408,173.70 : x
  2. Step 2: Convert to fraction form
    739,307.10/1,020,249.91 = 408,173.70/x
  3. Step 3: Cross multiply
    739,307.10x = 1,020,249.91 × 408,173.70
  4. Step 4: Simplify right side
    739,307.10x = 416,439,180,689.37
  5. Step 5: Solve for x
    x = 416,439,180,689.37/739,307.10
  6. Step 6: Final answer
    x = 563,283.08

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Double scale
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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.