Home / 770,283.29-1,155,485.10-257,950.37

Finding the Fourth Proportional to 770,283.29, 1,155,485.10 and 257,950.37

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Solution

The fourth proportional to 770,283.29, 1,155,485.10 and 257,950.37 is: 386,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,283.29 : 1,155,485.10 = 257,950.37 : x
  2. Step 2: Convert to fraction form
    770,283.29/1,155,485.10 = 257,950.37/x
  3. Step 3: Cross multiply
    770,283.29x = 1,155,485.10 × 257,950.37
  4. Step 4: Simplify right side
    770,283.29x = 298,057,803,297.06
  5. Step 5: Solve for x
    x = 298,057,803,297.06/770,283.29
  6. Step 6: Final answer
    x = 386,945.70

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Double scale
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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.