Home / 897,895.20-1,239,087.60-490,005.12

Finding the Fourth Proportional to 897,895.20, 1,239,087.60 and 490,005.12

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Solution

The fourth proportional to 897,895.20, 1,239,087.60 and 490,005.12 is: 676,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,895.20 : 1,239,087.60 = 490,005.12 : x
  2. Step 2: Convert to fraction form
    897,895.20/1,239,087.60 = 490,005.12/x
  3. Step 3: Cross multiply
    897,895.20x = 1,239,087.60 × 490,005.12
  4. Step 4: Simplify right side
    897,895.20x = 607,159,268,128.51
  5. Step 5: Solve for x
    x = 607,159,268,128.51/897,895.20
  6. Step 6: Final answer
    x = 676,202.82

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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.