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Finding the Fourth Proportional to 719,770.66, 993,315.45 and 413,946.34

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Solution

The fourth proportional to 719,770.66, 993,315.45 and 413,946.34 is: 571,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,770.66 : 993,315.45 = 413,946.34 : x
  2. Step 2: Convert to fraction form
    719,770.66/993,315.45 = 413,946.34/x
  3. Step 3: Cross multiply
    719,770.66x = 993,315.45 × 413,946.34
  4. Step 4: Simplify right side
    719,770.66x = 411,179,294,992.95
  5. Step 5: Solve for x
    x = 411,179,294,992.95/719,770.66
  6. Step 6: Final answer
    x = 571,264.32

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1.5x scale

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.