Home / 689,030.40-1,033,545.60-502,406.40

Finding the Fourth Proportional to 689,030.40, 1,033,545.60 and 502,406.40

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Solution

The fourth proportional to 689,030.40, 1,033,545.60 and 502,406.40 is: 753,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,030.40 : 1,033,545.60 = 502,406.40 : x
  2. Step 2: Convert to fraction form
    689,030.40/1,033,545.60 = 502,406.40/x
  3. Step 3: Cross multiply
    689,030.40x = 1,033,545.60 × 502,406.40
  4. Step 4: Simplify right side
    689,030.40x = 519,259,924,131.84
  5. Step 5: Solve for x
    x = 519,259,924,131.84/689,030.40
  6. Step 6: Final answer
    x = 753,609.60

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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.