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Finding the Fourth Proportional to 1,578,649.86, 2,367,941.76 and 631,766.34

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Solution

The fourth proportional to 1,578,649.86, 2,367,941.76 and 631,766.34 is: 947,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,649.86 : 2,367,941.76 = 631,766.34 : x
  2. Step 2: Convert to fraction form
    1,578,649.86/2,367,941.76 = 631,766.34/x
  3. Step 3: Cross multiply
    1,578,649.86x = 2,367,941.76 × 631,766.34
  4. Step 4: Simplify right side
    1,578,649.86x = 1,495,985,899,048.36
  5. Step 5: Solve for x
    x = 1,495,985,899,048.36/1,578,649.86
  6. Step 6: Final answer
    x = 947,636.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.