Home / 897,903.52-1,239,132.98-490,031.60

Finding the Fourth Proportional to 897,903.52, 1,239,132.98 and 490,031.60

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Solution

The fourth proportional to 897,903.52, 1,239,132.98 and 490,031.60 is: 676,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,903.52 : 1,239,132.98 = 490,031.60 : x
  2. Step 2: Convert to fraction form
    897,903.52/1,239,132.98 = 490,031.60/x
  3. Step 3: Cross multiply
    897,903.52x = 1,239,132.98 × 490,031.60
  4. Step 4: Simplify right side
    897,903.52x = 607,214,311,831.58
  5. Step 5: Solve for x
    x = 607,214,311,831.58/897,903.52
  6. Step 6: Final answer
    x = 676,257.86

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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.