Home / 677,307.60-1,017,127.80-479,019.60

Finding the Fourth Proportional to 677,307.60, 1,017,127.80 and 479,019.60

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Solution

The fourth proportional to 677,307.60, 1,017,127.80 and 479,019.60 is: 719,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,307.60 : 1,017,127.80 = 479,019.60 : x
  2. Step 2: Convert to fraction form
    677,307.60/1,017,127.80 = 479,019.60/x
  3. Step 3: Cross multiply
    677,307.60x = 1,017,127.80 × 479,019.60
  4. Step 4: Simplify right side
    677,307.60x = 487,224,151,904.88
  5. Step 5: Solve for x
    x = 487,224,151,904.88/677,307.60
  6. Step 6: Final answer
    x = 719,354.33

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Double scale
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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.