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Finding the Fourth Proportional to 586,585, 879,877.50 and 212,608.36

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Solution

The fourth proportional to 586,585, 879,877.50 and 212,608.36 is: 318,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,585 : 879,877.50 = 212,608.36 : x
  2. Step 2: Convert to fraction form
    586,585/879,877.50 = 212,608.36/x
  3. Step 3: Cross multiply
    586,585x = 879,877.50 × 212,608.36
  4. Step 4: Simplify right side
    586,585x = 187,069,312,275.90
  5. Step 5: Solve for x
    x = 187,069,312,275.90/586,585
  6. Step 6: Final answer
    x = 318,912.54

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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.