Home / 907,903.20-1,362,632.40-403,240.80

Finding the Fourth Proportional to 907,903.20, 1,362,632.40 and 403,240.80

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Solution

The fourth proportional to 907,903.20, 1,362,632.40 and 403,240.80 is: 605,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,903.20 : 1,362,632.40 = 403,240.80 : x
  2. Step 2: Convert to fraction form
    907,903.20/1,362,632.40 = 403,240.80/x
  3. Step 3: Cross multiply
    907,903.20x = 1,362,632.40 × 403,240.80
  4. Step 4: Simplify right side
    907,903.20x = 549,468,979,081.92
  5. Step 5: Solve for x
    x = 549,468,979,081.92/907,903.20
  6. Step 6: Final answer
    x = 605,206.57

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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.