Home / 782,307.02-1,079,460.37-455,673.79

Finding the Fourth Proportional to 782,307.02, 1,079,460.37 and 455,673.79

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Solution

The fourth proportional to 782,307.02, 1,079,460.37 and 455,673.79 is: 628,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,307.02 : 1,079,460.37 = 455,673.79 : x
  2. Step 2: Convert to fraction form
    782,307.02/1,079,460.37 = 455,673.79/x
  3. Step 3: Cross multiply
    782,307.02x = 1,079,460.37 × 455,673.79
  4. Step 4: Simplify right side
    782,307.02x = 491,881,798,353.63
  5. Step 5: Solve for x
    x = 491,881,798,353.63/782,307.02
  6. Step 6: Final answer
    x = 628,758.00

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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.