Home / 770,664.12-1,154,945.70-371,275.80

Finding the Fourth Proportional to 770,664.12, 1,154,945.70 and 371,275.80

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Solution

The fourth proportional to 770,664.12, 1,154,945.70 and 371,275.80 is: 556,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,664.12 : 1,154,945.70 = 371,275.80 : x
  2. Step 2: Convert to fraction form
    770,664.12/1,154,945.70 = 371,275.80/x
  3. Step 3: Cross multiply
    770,664.12x = 1,154,945.70 × 371,275.80
  4. Step 4: Simplify right side
    770,664.12x = 428,803,388,724.06
  5. Step 5: Solve for x
    x = 428,803,388,724.06/770,664.12
  6. Step 6: Final answer
    x = 556,407.62

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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.