Home / 1,138,032.50-1,570,466.50-621,775.30

Finding the Fourth Proportional to 1,138,032.50, 1,570,466.50 and 621,775.30

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Solution

The fourth proportional to 1,138,032.50, 1,570,466.50 and 621,775.30 is: 858,039.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,032.50 : 1,570,466.50 = 621,775.30 : x
  2. Step 2: Convert to fraction form
    1,138,032.50/1,570,466.50 = 621,775.30/x
  3. Step 3: Cross multiply
    1,138,032.50x = 1,570,466.50 × 621,775.30
  4. Step 4: Simplify right side
    1,138,032.50x = 976,477,279,177.45
  5. Step 5: Solve for x
    x = 976,477,279,177.45/1,138,032.50
  6. Step 6: Final answer
    x = 858,039.89

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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.