Home / 1,029,962.79-1,421,495.72-571,179.39

Finding the Fourth Proportional to 1,029,962.79, 1,421,495.72 and 571,179.39

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Solution

The fourth proportional to 1,029,962.79, 1,421,495.72 and 571,179.39 is: 788,309.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,962.79 : 1,421,495.72 = 571,179.39 : x
  2. Step 2: Convert to fraction form
    1,029,962.79/1,421,495.72 = 571,179.39/x
  3. Step 3: Cross multiply
    1,029,962.79x = 1,421,495.72 × 571,179.39
  4. Step 4: Simplify right side
    1,029,962.79x = 811,929,055,381.31
  5. Step 5: Solve for x
    x = 811,929,055,381.31/1,029,962.79
  6. Step 6: Final answer
    x = 788,309.11

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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.