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Finding the Fourth Proportional to 465,302.40, 698,609.70 and 288,155.40

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Solution

The fourth proportional to 465,302.40, 698,609.70 and 288,155.40 is: 432,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,302.40 : 698,609.70 = 288,155.40 : x
  2. Step 2: Convert to fraction form
    465,302.40/698,609.70 = 288,155.40/x
  3. Step 3: Cross multiply
    465,302.40x = 698,609.70 × 288,155.40
  4. Step 4: Simplify right side
    465,302.40x = 201,308,157,547.38
  5. Step 5: Solve for x
    x = 201,308,157,547.38/465,302.40
  6. Step 6: Final answer
    x = 432,639.41

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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.