Home / 690,415.02-1,035,141.21-305,954.52

Finding the Fourth Proportional to 690,415.02, 1,035,141.21 and 305,954.52

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Solution

The fourth proportional to 690,415.02, 1,035,141.21 and 305,954.52 is: 458,718.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,415.02 : 1,035,141.21 = 305,954.52 : x
  2. Step 2: Convert to fraction form
    690,415.02/1,035,141.21 = 305,954.52/x
  3. Step 3: Cross multiply
    690,415.02x = 1,035,141.21 × 305,954.52
  4. Step 4: Simplify right side
    690,415.02x = 316,706,132,037.77
  5. Step 5: Solve for x
    x = 316,706,132,037.77/690,415.02
  6. Step 6: Final answer
    x = 458,718.49

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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.