Home / 1,072,189.05-1,604,263.74-638,319.54

Finding the Fourth Proportional to 1,072,189.05, 1,604,263.74 and 638,319.54

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Solution

The fourth proportional to 1,072,189.05, 1,604,263.74 and 638,319.54 is: 955,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,189.05 : 1,604,263.74 = 638,319.54 : x
  2. Step 2: Convert to fraction form
    1,072,189.05/1,604,263.74 = 638,319.54/x
  3. Step 3: Cross multiply
    1,072,189.05x = 1,604,263.74 × 638,319.54
  4. Step 4: Simplify right side
    1,072,189.05x = 1,024,032,892,555.48
  5. Step 5: Solve for x
    x = 1,024,032,892,555.48/1,072,189.05
  6. Step 6: Final answer
    x = 955,086.13

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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.