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Finding the Fourth Proportional to 561,653.20, 842,479.80 and 561,653.20

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Solution

The fourth proportional to 561,653.20, 842,479.80 and 561,653.20 is: 842,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,653.20 : 842,479.80 = 561,653.20 : x
  2. Step 2: Convert to fraction form
    561,653.20/842,479.80 = 561,653.20/x
  3. Step 3: Cross multiply
    561,653.20x = 842,479.80 × 561,653.20
  4. Step 4: Simplify right side
    561,653.20x = 473,181,475,605.36
  5. Step 5: Solve for x
    x = 473,181,475,605.36/561,653.20
  6. Step 6: Final answer
    x = 842,479.80

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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.