Home / 992,505.09-1,487,884.02-393,886.74

Finding the Fourth Proportional to 992,505.09, 1,487,884.02 and 393,886.74

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Solution

The fourth proportional to 992,505.09, 1,487,884.02 and 393,886.74 is: 590,483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,505.09 : 1,487,884.02 = 393,886.74 : x
  2. Step 2: Convert to fraction form
    992,505.09/1,487,884.02 = 393,886.74/x
  3. Step 3: Cross multiply
    992,505.09x = 1,487,884.02 × 393,886.74
  4. Step 4: Simplify right side
    992,505.09x = 586,057,786,135.90
  5. Step 5: Solve for x
    x = 586,057,786,135.90/992,505.09
  6. Step 6: Final answer
    x = 590,483.41

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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.