Home / 899,323.47-1,241,069.65-491,425.34

Finding the Fourth Proportional to 899,323.47, 1,241,069.65 and 491,425.34

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Solution

The fourth proportional to 899,323.47, 1,241,069.65 and 491,425.34 is: 678,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,323.47 : 1,241,069.65 = 491,425.34 : x
  2. Step 2: Convert to fraction form
    899,323.47/1,241,069.65 = 491,425.34/x
  3. Step 3: Cross multiply
    899,323.47x = 1,241,069.65 × 491,425.34
  4. Step 4: Simplify right side
    899,323.47x = 609,893,067,281.02
  5. Step 5: Solve for x
    x = 609,893,067,281.02/899,323.47
  6. Step 6: Final answer
    x = 678,168.74

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Double scale
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Similar ratio
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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.