Home / 689,920.40-1,034,880.60-503,296.40

Finding the Fourth Proportional to 689,920.40, 1,034,880.60 and 503,296.40

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Solution

The fourth proportional to 689,920.40, 1,034,880.60 and 503,296.40 is: 754,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,920.40 : 1,034,880.60 = 503,296.40 : x
  2. Step 2: Convert to fraction form
    689,920.40/1,034,880.60 = 503,296.40/x
  3. Step 3: Cross multiply
    689,920.40x = 1,034,880.60 × 503,296.40
  4. Step 4: Simplify right side
    689,920.40x = 520,851,680,409.84
  5. Step 5: Solve for x
    x = 520,851,680,409.84/689,920.40
  6. Step 6: Final answer
    x = 754,944.60

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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.