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Finding the Fourth Proportional to 677,946.32, 934,800.72 and 555,055.28

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Solution

The fourth proportional to 677,946.32, 934,800.72 and 555,055.28 is: 765,349.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,946.32 : 934,800.72 = 555,055.28 : x
  2. Step 2: Convert to fraction form
    677,946.32/934,800.72 = 555,055.28/x
  3. Step 3: Cross multiply
    677,946.32x = 934,800.72 × 555,055.28
  4. Step 4: Simplify right side
    677,946.32x = 518,866,075,383.80
  5. Step 5: Solve for x
    x = 518,866,075,383.80/677,946.32
  6. Step 6: Final answer
    x = 765,349.79

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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.