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Finding the Fourth Proportional to 620,444.80, 928,698.90 and 620,444.80

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Solution

The fourth proportional to 620,444.80, 928,698.90 and 620,444.80 is: 928,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,444.80 : 928,698.90 = 620,444.80 : x
  2. Step 2: Convert to fraction form
    620,444.80/928,698.90 = 620,444.80/x
  3. Step 3: Cross multiply
    620,444.80x = 928,698.90 × 620,444.80
  4. Step 4: Simplify right side
    620,444.80x = 576,206,403,270.72
  5. Step 5: Solve for x
    x = 576,206,403,270.72/620,444.80
  6. Step 6: Final answer
    x = 928,698.90

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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.