Home / 803,123.68-1,108,157.18-459,068.58

Finding the Fourth Proportional to 803,123.68, 1,108,157.18 and 459,068.58

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Solution

The fourth proportional to 803,123.68, 1,108,157.18 and 459,068.58 is: 633,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,123.68 : 1,108,157.18 = 459,068.58 : x
  2. Step 2: Convert to fraction form
    803,123.68/1,108,157.18 = 459,068.58/x
  3. Step 3: Cross multiply
    803,123.68x = 1,108,157.18 × 459,068.58
  4. Step 4: Simplify right side
    803,123.68x = 508,720,143,039.40
  5. Step 5: Solve for x
    x = 508,720,143,039.40/803,123.68
  6. Step 6: Final answer
    x = 633,426.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.