Home / 999,707.07-1,379,561.43-570,125.46

Finding the Fourth Proportional to 999,707.07, 1,379,561.43 and 570,125.46

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Solution

The fourth proportional to 999,707.07, 1,379,561.43 and 570,125.46 is: 786,753.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,707.07 : 1,379,561.43 = 570,125.46 : x
  2. Step 2: Convert to fraction form
    999,707.07/1,379,561.43 = 570,125.46/x
  3. Step 3: Cross multiply
    999,707.07x = 1,379,561.43 × 570,125.46
  4. Step 4: Simplify right side
    999,707.07x = 786,523,094,877.01
  5. Step 5: Solve for x
    x = 786,523,094,877.01/999,707.07
  6. Step 6: Final answer
    x = 786,753.56

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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.