Home / 708,803.40-1,063,205.10-646,595.40

Finding the Fourth Proportional to 708,803.40, 1,063,205.10 and 646,595.40

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Solution

The fourth proportional to 708,803.40, 1,063,205.10 and 646,595.40 is: 969,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,803.40 : 1,063,205.10 = 646,595.40 : x
  2. Step 2: Convert to fraction form
    708,803.40/1,063,205.10 = 646,595.40/x
  3. Step 3: Cross multiply
    708,803.40x = 1,063,205.10 × 646,595.40
  4. Step 4: Simplify right side
    708,803.40x = 687,463,526,916.54
  5. Step 5: Solve for x
    x = 687,463,526,916.54/708,803.40
  6. Step 6: Final answer
    x = 969,893.10

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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.