Home / 1,155,320.52-1,594,219.66-638,992.40

Finding the Fourth Proportional to 1,155,320.52, 1,594,219.66 and 638,992.40

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Solution

The fourth proportional to 1,155,320.52, 1,594,219.66 and 638,992.40 is: 881,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,320.52 : 1,594,219.66 = 638,992.40 : x
  2. Step 2: Convert to fraction form
    1,155,320.52/1,594,219.66 = 638,992.40/x
  3. Step 3: Cross multiply
    1,155,320.52x = 1,594,219.66 × 638,992.40
  4. Step 4: Simplify right side
    1,155,320.52x = 1,018,694,237,102.00
  5. Step 5: Solve for x
    x = 1,018,694,237,102.00/1,155,320.52
  6. Step 6: Final answer
    x = 881,741.67

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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.