Home / 1,208,430-1,812,258.03-398,633.19

Finding the Fourth Proportional to 1,208,430, 1,812,258.03 and 398,633.19

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Solution

The fourth proportional to 1,208,430, 1,812,258.03 and 398,633.19 is: 597,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,430 : 1,812,258.03 = 398,633.19 : x
  2. Step 2: Convert to fraction form
    1,208,430/1,812,258.03 = 398,633.19/x
  3. Step 3: Cross multiply
    1,208,430x = 1,812,258.03 × 398,633.19
  4. Step 4: Simplify right side
    1,208,430x = 722,426,199,602.02
  5. Step 5: Solve for x
    x = 722,426,199,602.02/1,208,430
  6. Step 6: Final answer
    x = 597,822.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.