Home / 687,109.06-1,030,957.35-354,918.34

Finding the Fourth Proportional to 687,109.06, 1,030,957.35 and 354,918.34

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Solution

The fourth proportional to 687,109.06, 1,030,957.35 and 354,918.34 is: 532,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,109.06 : 1,030,957.35 = 354,918.34 : x
  2. Step 2: Convert to fraction form
    687,109.06/1,030,957.35 = 354,918.34/x
  3. Step 3: Cross multiply
    687,109.06x = 1,030,957.35 × 354,918.34
  4. Step 4: Simplify right side
    687,109.06x = 365,905,671,272.80
  5. Step 5: Solve for x
    x = 365,905,671,272.80/687,109.06
  6. Step 6: Final answer
    x = 532,529.25

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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.