Home / 476,962.60-715,904.70-290,338.60

Finding the Fourth Proportional to 476,962.60, 715,904.70 and 290,338.60

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Solution

The fourth proportional to 476,962.60, 715,904.70 and 290,338.60 is: 435,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,962.60 : 715,904.70 = 290,338.60 : x
  2. Step 2: Convert to fraction form
    476,962.60/715,904.70 = 290,338.60/x
  3. Step 3: Cross multiply
    476,962.60x = 715,904.70 × 290,338.60
  4. Step 4: Simplify right side
    476,962.60x = 207,854,768,331.42
  5. Step 5: Solve for x
    x = 207,854,768,331.42/476,962.60
  6. Step 6: Final answer
    x = 435,788.40

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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.