Home / 860,875.94-1,291,812.90-434,445.11

Finding the Fourth Proportional to 860,875.94, 1,291,812.90 and 434,445.11

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Solution

The fourth proportional to 860,875.94, 1,291,812.90 and 434,445.11 is: 651,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,875.94 : 1,291,812.90 = 434,445.11 : x
  2. Step 2: Convert to fraction form
    860,875.94/1,291,812.90 = 434,445.11/x
  3. Step 3: Cross multiply
    860,875.94x = 1,291,812.90 × 434,445.11
  4. Step 4: Simplify right side
    860,875.94x = 561,221,793,601.25
  5. Step 5: Solve for x
    x = 561,221,793,601.25/860,875.94
  6. Step 6: Final answer
    x = 651,919.48

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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.