Home / 948,985.61-1,309,616.53-519,272.91

Finding the Fourth Proportional to 948,985.61, 1,309,616.53 and 519,272.91

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Solution

The fourth proportional to 948,985.61, 1,309,616.53 and 519,272.91 is: 716,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,985.61 : 1,309,616.53 = 519,272.91 : x
  2. Step 2: Convert to fraction form
    948,985.61/1,309,616.53 = 519,272.91/x
  3. Step 3: Cross multiply
    948,985.61x = 1,309,616.53 × 519,272.91
  4. Step 4: Simplify right side
    948,985.61x = 680,048,385,219.02
  5. Step 5: Solve for x
    x = 680,048,385,219.02/948,985.61
  6. Step 6: Final answer
    x = 716,605.59

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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.