Home / 779,038.90-1,168,558.35-359,134.90

Finding the Fourth Proportional to 779,038.90, 1,168,558.35 and 359,134.90

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Solution

The fourth proportional to 779,038.90, 1,168,558.35 and 359,134.90 is: 538,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,038.90 : 1,168,558.35 = 359,134.90 : x
  2. Step 2: Convert to fraction form
    779,038.90/1,168,558.35 = 359,134.90/x
  3. Step 3: Cross multiply
    779,038.90x = 1,168,558.35 × 359,134.90
  4. Step 4: Simplify right side
    779,038.90x = 419,670,086,171.42
  5. Step 5: Solve for x
    x = 419,670,086,171.42/779,038.90
  6. Step 6: Final answer
    x = 538,702.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.