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Finding the Fourth Proportional to 423,459.81, 584,179.61 and 270,421.34

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Solution

The fourth proportional to 423,459.81, 584,179.61 and 270,421.34 is: 373,056.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,459.81 : 584,179.61 = 270,421.34 : x
  2. Step 2: Convert to fraction form
    423,459.81/584,179.61 = 270,421.34/x
  3. Step 3: Cross multiply
    423,459.81x = 584,179.61 × 270,421.34
  4. Step 4: Simplify right side
    423,459.81x = 157,974,628,663.87
  5. Step 5: Solve for x
    x = 157,974,628,663.87/423,459.81
  6. Step 6: Final answer
    x = 373,056.96

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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.