Home / 1,291,495-1,782,279.42-710,784.97

Finding the Fourth Proportional to 1,291,495, 1,782,279.42 and 710,784.97

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Solution

The fourth proportional to 1,291,495, 1,782,279.42 and 710,784.97 is: 980,892.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,495 : 1,782,279.42 = 710,784.97 : x
  2. Step 2: Convert to fraction form
    1,291,495/1,782,279.42 = 710,784.97/x
  3. Step 3: Cross multiply
    1,291,495x = 1,782,279.42 × 710,784.97
  4. Step 4: Simplify right side
    1,291,495x = 1,266,817,424,076.32
  5. Step 5: Solve for x
    x = 1,266,817,424,076.32/1,291,495
  6. Step 6: Final answer
    x = 980,892.24

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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.