Home / 927,720.80-1,390,544.40-528,552.80

Finding the Fourth Proportional to 927,720.80, 1,390,544.40 and 528,552.80

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Solution

The fourth proportional to 927,720.80, 1,390,544.40 and 528,552.80 is: 792,238.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,720.80 : 1,390,544.40 = 528,552.80 : x
  2. Step 2: Convert to fraction form
    927,720.80/1,390,544.40 = 528,552.80/x
  3. Step 3: Cross multiply
    927,720.80x = 1,390,544.40 × 528,552.80
  4. Step 4: Simplify right side
    927,720.80x = 734,976,136,144.32
  5. Step 5: Solve for x
    x = 734,976,136,144.32/927,720.80
  6. Step 6: Final answer
    x = 792,238.50

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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.