Home / 909,947.20-1,364,920.64-488,643.52

Finding the Fourth Proportional to 909,947.20, 1,364,920.64 and 488,643.52

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Solution

The fourth proportional to 909,947.20, 1,364,920.64 and 488,643.52 is: 732,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,947.20 : 1,364,920.64 = 488,643.52 : x
  2. Step 2: Convert to fraction form
    909,947.20/1,364,920.64 = 488,643.52/x
  3. Step 3: Cross multiply
    909,947.20x = 1,364,920.64 × 488,643.52
  4. Step 4: Simplify right side
    909,947.20x = 666,959,626,050.25
  5. Step 5: Solve for x
    x = 666,959,626,050.25/909,947.20
  6. Step 6: Final answer
    x = 732,965.19

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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.