Home / 849,625.60-1,272,364.80-405,875.20

Finding the Fourth Proportional to 849,625.60, 1,272,364.80 and 405,875.20

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Solution

The fourth proportional to 849,625.60, 1,272,364.80 and 405,875.20 is: 607,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,625.60 : 1,272,364.80 = 405,875.20 : x
  2. Step 2: Convert to fraction form
    849,625.60/1,272,364.80 = 405,875.20/x
  3. Step 3: Cross multiply
    849,625.60x = 1,272,364.80 × 405,875.20
  4. Step 4: Simplify right side
    849,625.60x = 516,421,317,672.96
  5. Step 5: Solve for x
    x = 516,421,317,672.96/849,625.60
  6. Step 6: Final answer
    x = 607,822.22

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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.