Home / 947,985.98-1,308,225.28-518,266.13

Finding the Fourth Proportional to 947,985.98, 1,308,225.28 and 518,266.13

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Solution

The fourth proportional to 947,985.98, 1,308,225.28 and 518,266.13 is: 715,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,985.98 : 1,308,225.28 = 518,266.13 : x
  2. Step 2: Convert to fraction form
    947,985.98/1,308,225.28 = 518,266.13/x
  3. Step 3: Cross multiply
    947,985.98x = 1,308,225.28 × 518,266.13
  4. Step 4: Simplify right side
    947,985.98x = 678,008,853,033.77
  5. Step 5: Solve for x
    x = 678,008,853,033.77/947,985.98
  6. Step 6: Final answer
    x = 715,209.79

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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.