Home / 897,484.57-1,238,728.42-570,731.36

Finding the Fourth Proportional to 897,484.57, 1,238,728.42 and 570,731.36

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Solution

The fourth proportional to 897,484.57, 1,238,728.42 and 570,731.36 is: 787,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,484.57 : 1,238,728.42 = 570,731.36 : x
  2. Step 2: Convert to fraction form
    897,484.57/1,238,728.42 = 570,731.36/x
  3. Step 3: Cross multiply
    897,484.57x = 1,238,728.42 × 570,731.36
  4. Step 4: Simplify right side
    897,484.57x = 706,981,155,817.25
  5. Step 5: Solve for x
    x = 706,981,155,817.25/897,484.57
  6. Step 6: Final answer
    x = 787,736.28

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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.