Home / 897,908.50-1,239,120.96-490,013.56

Finding the Fourth Proportional to 897,908.50, 1,239,120.96 and 490,013.56

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Solution

The fourth proportional to 897,908.50, 1,239,120.96 and 490,013.56 is: 676,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,908.50 : 1,239,120.96 = 490,013.56 : x
  2. Step 2: Convert to fraction form
    897,908.50/1,239,120.96 = 490,013.56/x
  3. Step 3: Cross multiply
    897,908.50x = 1,239,120.96 × 490,013.56
  4. Step 4: Simplify right side
    897,908.50x = 607,186,072,880.22
  5. Step 5: Solve for x
    x = 607,186,072,880.22/897,908.50
  6. Step 6: Final answer
    x = 676,222.66

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Double scale
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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.