Home / 770,711.40-1,156,268.70-297,412.20

Finding the Fourth Proportional to 770,711.40, 1,156,268.70 and 297,412.20

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Solution

The fourth proportional to 770,711.40, 1,156,268.70 and 297,412.20 is: 446,196.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,711.40 : 1,156,268.70 = 297,412.20 : x
  2. Step 2: Convert to fraction form
    770,711.40/1,156,268.70 = 297,412.20/x
  3. Step 3: Cross multiply
    770,711.40x = 1,156,268.70 × 297,412.20
  4. Step 4: Simplify right side
    770,711.40x = 343,888,417,858.14
  5. Step 5: Solve for x
    x = 343,888,417,858.14/770,711.40
  6. Step 6: Final answer
    x = 446,196.10

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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.