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Finding the Fourth Proportional to 423,200.58, 583,289.55 and 403,269.72

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Solution

The fourth proportional to 423,200.58, 583,289.55 and 403,269.72 is: 555,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,200.58 : 583,289.55 = 403,269.72 : x
  2. Step 2: Convert to fraction form
    423,200.58/583,289.55 = 403,269.72/x
  3. Step 3: Cross multiply
    423,200.58x = 583,289.55 × 403,269.72
  4. Step 4: Simplify right side
    423,200.58x = 235,223,013,507.43
  5. Step 5: Solve for x
    x = 235,223,013,507.43/423,200.58
  6. Step 6: Final answer
    x = 555,819.21

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1.5x scale

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.