Home / 889,683.90-1,334,655.45-290,672.70

Finding the Fourth Proportional to 889,683.90, 1,334,655.45 and 290,672.70

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Solution

The fourth proportional to 889,683.90, 1,334,655.45 and 290,672.70 is: 436,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,683.90 : 1,334,655.45 = 290,672.70 : x
  2. Step 2: Convert to fraction form
    889,683.90/1,334,655.45 = 290,672.70/x
  3. Step 3: Cross multiply
    889,683.90x = 1,334,655.45 × 290,672.70
  4. Step 4: Simplify right side
    889,683.90x = 387,947,903,221.22
  5. Step 5: Solve for x
    x = 387,947,903,221.22/889,683.90
  6. Step 6: Final answer
    x = 436,051.39

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1.5x scale

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.