Home / 779,900.40-1,169,850.60-659,631.60

Finding the Fourth Proportional to 779,900.40, 1,169,850.60 and 659,631.60

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Solution

The fourth proportional to 779,900.40, 1,169,850.60 and 659,631.60 is: 989,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,900.40 : 1,169,850.60 = 659,631.60 : x
  2. Step 2: Convert to fraction form
    779,900.40/1,169,850.60 = 659,631.60/x
  3. Step 3: Cross multiply
    779,900.40x = 1,169,850.60 × 659,631.60
  4. Step 4: Simplify right side
    779,900.40x = 771,670,423,038.96
  5. Step 5: Solve for x
    x = 771,670,423,038.96/779,900.40
  6. Step 6: Final answer
    x = 989,447.40

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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.