Home / 897,903.65-1,239,133.14-490,031.72

Finding the Fourth Proportional to 897,903.65, 1,239,133.14 and 490,031.72

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Solution

The fourth proportional to 897,903.65, 1,239,133.14 and 490,031.72 is: 676,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,903.65 : 1,239,133.14 = 490,031.72 : x
  2. Step 2: Convert to fraction form
    897,903.65/1,239,133.14 = 490,031.72/x
  3. Step 3: Cross multiply
    897,903.65x = 1,239,133.14 × 490,031.72
  4. Step 4: Simplify right side
    897,903.65x = 607,214,543,903.20
  5. Step 5: Solve for x
    x = 607,214,543,903.20/897,903.65
  6. Step 6: Final answer
    x = 676,258.02

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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.