Home / 626,616.70-939,925.05-311,688.70

Finding the Fourth Proportional to 626,616.70, 939,925.05 and 311,688.70

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Solution

The fourth proportional to 626,616.70, 939,925.05 and 311,688.70 is: 467,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,616.70 : 939,925.05 = 311,688.70 : x
  2. Step 2: Convert to fraction form
    626,616.70/939,925.05 = 311,688.70/x
  3. Step 3: Cross multiply
    626,616.70x = 939,925.05 × 311,688.70
  4. Step 4: Simplify right side
    626,616.70x = 292,964,016,931.94
  5. Step 5: Solve for x
    x = 292,964,016,931.94/626,616.70
  6. Step 6: Final answer
    x = 467,533.05

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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.