Home / 900,005.58-1,242,320.22-518,184.54

Finding the Fourth Proportional to 900,005.58, 1,242,320.22 and 518,184.54

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Solution

The fourth proportional to 900,005.58, 1,242,320.22 and 518,184.54 is: 715,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,005.58 : 1,242,320.22 = 518,184.54 : x
  2. Step 2: Convert to fraction form
    900,005.58/1,242,320.22 = 518,184.54/x
  3. Step 3: Cross multiply
    900,005.58x = 1,242,320.22 × 518,184.54
  4. Step 4: Simplify right side
    900,005.58x = 643,751,131,733.40
  5. Step 5: Solve for x
    x = 643,751,131,733.40/900,005.58
  6. Step 6: Final answer
    x = 715,274.60

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1.5x scale

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.