Home / 977,631.75-1,349,128.62-569,974.95

Finding the Fourth Proportional to 977,631.75, 1,349,128.62 and 569,974.95

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Solution

The fourth proportional to 977,631.75, 1,349,128.62 and 569,974.95 is: 786,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,631.75 : 1,349,128.62 = 569,974.95 : x
  2. Step 2: Convert to fraction form
    977,631.75/1,349,128.62 = 569,974.95/x
  3. Step 3: Cross multiply
    977,631.75x = 1,349,128.62 × 569,974.95
  4. Step 4: Simplify right side
    977,631.75x = 768,969,517,728.07
  5. Step 5: Solve for x
    x = 768,969,517,728.07/977,631.75
  6. Step 6: Final answer
    x = 786,563.57

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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.