Home / 990,923.89-1,367,571.02-555,415.25

Finding the Fourth Proportional to 990,923.89, 1,367,571.02 and 555,415.25

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Solution

The fourth proportional to 990,923.89, 1,367,571.02 and 555,415.25 is: 766,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,923.89 : 1,367,571.02 = 555,415.25 : x
  2. Step 2: Convert to fraction form
    990,923.89/1,367,571.02 = 555,415.25/x
  3. Step 3: Cross multiply
    990,923.89x = 1,367,571.02 × 555,415.25
  4. Step 4: Simplify right side
    990,923.89x = 759,569,798,312.64
  5. Step 5: Solve for x
    x = 759,569,798,312.64/990,923.89
  6. Step 6: Final answer
    x = 766,526.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.