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Finding the Fourth Proportional to 423,383.96, 634,176.32 and 286,690.12

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Solution

The fourth proportional to 423,383.96, 634,176.32 and 286,690.12 is: 429,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,383.96 : 634,176.32 = 286,690.12 : x
  2. Step 2: Convert to fraction form
    423,383.96/634,176.32 = 286,690.12/x
  3. Step 3: Cross multiply
    423,383.96x = 634,176.32 × 286,690.12
  4. Step 4: Simplify right side
    423,383.96x = 181,812,085,281.96
  5. Step 5: Solve for x
    x = 181,812,085,281.96/423,383.96
  6. Step 6: Final answer
    x = 429,426.01

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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.