Home / 739,774.86-1,020,889.71-513,551.58

Finding the Fourth Proportional to 739,774.86, 1,020,889.71 and 513,551.58

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Solution

The fourth proportional to 739,774.86, 1,020,889.71 and 513,551.58 is: 708,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,774.86 : 1,020,889.71 = 513,551.58 : x
  2. Step 2: Convert to fraction form
    739,774.86/1,020,889.71 = 513,551.58/x
  3. Step 3: Cross multiply
    739,774.86x = 1,020,889.71 × 513,551.58
  4. Step 4: Simplify right side
    739,774.86x = 524,279,523,576.24
  5. Step 5: Solve for x
    x = 524,279,523,576.24/739,774.86
  6. Step 6: Final answer
    x = 708,701.46

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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.