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Finding the Fourth Proportional to 586,579.80, 879,869.70 and 453,719.55

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Solution

The fourth proportional to 586,579.80, 879,869.70 and 453,719.55 is: 680,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,579.80 : 879,869.70 = 453,719.55 : x
  2. Step 2: Convert to fraction form
    586,579.80/879,869.70 = 453,719.55/x
  3. Step 3: Cross multiply
    586,579.80x = 879,869.70 × 453,719.55
  4. Step 4: Simplify right side
    586,579.80x = 399,214,084,342.64
  5. Step 5: Solve for x
    x = 399,214,084,342.64/586,579.80
  6. Step 6: Final answer
    x = 680,579.33

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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.