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Finding the Fourth Proportional to 608,587.89, 912,964.88 and 253,518.87

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Solution

The fourth proportional to 608,587.89, 912,964.88 and 253,518.87 is: 380,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,587.89 : 912,964.88 = 253,518.87 : x
  2. Step 2: Convert to fraction form
    608,587.89/912,964.88 = 253,518.87/x
  3. Step 3: Cross multiply
    608,587.89x = 912,964.88 × 253,518.87
  4. Step 4: Simplify right side
    608,587.89x = 231,453,824,727.29
  5. Step 5: Solve for x
    x = 231,453,824,727.29/608,587.89
  6. Step 6: Final answer
    x = 380,312.90

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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.