Home / 764,139.20-1,144,896.60-497,762.60

Finding the Fourth Proportional to 764,139.20, 1,144,896.60 and 497,762.60

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Solution

The fourth proportional to 764,139.20, 1,144,896.60 and 497,762.60 is: 745,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,139.20 : 1,144,896.60 = 497,762.60 : x
  2. Step 2: Convert to fraction form
    764,139.20/1,144,896.60 = 497,762.60/x
  3. Step 3: Cross multiply
    764,139.20x = 1,144,896.60 × 497,762.60
  4. Step 4: Simplify right side
    764,139.20x = 569,886,708,347.16
  5. Step 5: Solve for x
    x = 569,886,708,347.16/764,139.20
  6. Step 6: Final answer
    x = 745,789.13

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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.