Home / 729,602.18-1,006,860.96-402,937.22

Finding the Fourth Proportional to 729,602.18, 1,006,860.96 and 402,937.22

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Solution

The fourth proportional to 729,602.18, 1,006,860.96 and 402,937.22 is: 556,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,602.18 : 1,006,860.96 = 402,937.22 : x
  2. Step 2: Convert to fraction form
    729,602.18/1,006,860.96 = 402,937.22/x
  3. Step 3: Cross multiply
    729,602.18x = 1,006,860.96 × 402,937.22
  4. Step 4: Simplify right side
    729,602.18x = 405,701,758,666.08
  5. Step 5: Solve for x
    x = 405,701,758,666.08/729,602.18
  6. Step 6: Final answer
    x = 556,058.86

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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.