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Finding the Fourth Proportional to 617,597.60, 851,607.88 and 402,338.48

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Solution

The fourth proportional to 617,597.60, 851,607.88 and 402,338.48 is: 554,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,597.60 : 851,607.88 = 402,338.48 : x
  2. Step 2: Convert to fraction form
    617,597.60/851,607.88 = 402,338.48/x
  3. Step 3: Cross multiply
    617,597.60x = 851,607.88 × 402,338.48
  4. Step 4: Simplify right side
    617,597.60x = 342,634,614,731.34
  5. Step 5: Solve for x
    x = 342,634,614,731.34/617,597.60
  6. Step 6: Final answer
    x = 554,786.19

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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.