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Finding the Fourth Proportional to 556,079.88, 767,395.71 and 301,430.46

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Solution

The fourth proportional to 556,079.88, 767,395.71 and 301,430.46 is: 415,977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,079.88 : 767,395.71 = 301,430.46 : x
  2. Step 2: Convert to fraction form
    556,079.88/767,395.71 = 301,430.46/x
  3. Step 3: Cross multiply
    556,079.88x = 767,395.71 × 301,430.46
  4. Step 4: Simplify right side
    556,079.88x = 231,316,441,867.33
  5. Step 5: Solve for x
    x = 231,316,441,867.33/556,079.88
  6. Step 6: Final answer
    x = 415,977.00

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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.