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Finding the Fourth Proportional to 539,746.40, 808,928.40 and 414,466.40

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Solution

The fourth proportional to 539,746.40, 808,928.40 and 414,466.40 is: 621,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,746.40 : 808,928.40 = 414,466.40 : x
  2. Step 2: Convert to fraction form
    539,746.40/808,928.40 = 414,466.40/x
  3. Step 3: Cross multiply
    539,746.40x = 808,928.40 × 414,466.40
  4. Step 4: Simplify right side
    539,746.40x = 335,273,641,805.76
  5. Step 5: Solve for x
    x = 335,273,641,805.76/539,746.40
  6. Step 6: Final answer
    x = 621,168.83

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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.