Home / 897,902.40-1,239,131.42-490,030.47

Finding the Fourth Proportional to 897,902.40, 1,239,131.42 and 490,030.47

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Solution

The fourth proportional to 897,902.40, 1,239,131.42 and 490,030.47 is: 676,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,902.40 : 1,239,131.42 = 490,030.47 : x
  2. Step 2: Convert to fraction form
    897,902.40/1,239,131.42 = 490,030.47/x
  3. Step 3: Cross multiply
    897,902.40x = 1,239,131.42 × 490,030.47
  4. Step 4: Simplify right side
    897,902.40x = 607,212,152,134.37
  5. Step 5: Solve for x
    x = 607,212,152,134.37/897,902.40
  6. Step 6: Final answer
    x = 676,256.30

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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.