Home / 756,140.10-1,134,210.15-698,403.30

Finding the Fourth Proportional to 756,140.10, 1,134,210.15 and 698,403.30

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Solution

The fourth proportional to 756,140.10, 1,134,210.15 and 698,403.30 is: 1,047,604.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,140.10 : 1,134,210.15 = 698,403.30 : x
  2. Step 2: Convert to fraction form
    756,140.10/1,134,210.15 = 698,403.30/x
  3. Step 3: Cross multiply
    756,140.10x = 1,134,210.15 × 698,403.30
  4. Step 4: Simplify right side
    756,140.10x = 792,136,111,653.50
  5. Step 5: Solve for x
    x = 792,136,111,653.50/756,140.10
  6. Step 6: Final answer
    x = 1,047,604.95

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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.