Home / 786,113.90-1,178,084.18-358,607.34

Finding the Fourth Proportional to 786,113.90, 1,178,084.18 and 358,607.34

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Solution

The fourth proportional to 786,113.90, 1,178,084.18 and 358,607.34 is: 537,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,113.90 : 1,178,084.18 = 358,607.34 : x
  2. Step 2: Convert to fraction form
    786,113.90/1,178,084.18 = 358,607.34/x
  3. Step 3: Cross multiply
    786,113.90x = 1,178,084.18 × 358,607.34
  4. Step 4: Simplify right side
    786,113.90x = 422,469,634,085.88
  5. Step 5: Solve for x
    x = 422,469,634,085.88/786,113.90
  6. Step 6: Final answer
    x = 537,415.30

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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.