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Finding the Fourth Proportional to 662,065.60, 993,616.80 and 307,123.60

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Solution

The fourth proportional to 662,065.60, 993,616.80 and 307,123.60 is: 460,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,065.60 : 993,616.80 = 307,123.60 : x
  2. Step 2: Convert to fraction form
    662,065.60/993,616.80 = 307,123.60/x
  3. Step 3: Cross multiply
    662,065.60x = 993,616.80 × 307,123.60
  4. Step 4: Simplify right side
    662,065.60x = 305,163,168,636.48
  5. Step 5: Solve for x
    x = 305,163,168,636.48/662,065.60
  6. Step 6: Final answer
    x = 460,925.88

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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.