Home / 918,967.63-1,267,989.15-536,920.60

Finding the Fourth Proportional to 918,967.63, 1,267,989.15 and 536,920.60

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Solution

The fourth proportional to 918,967.63, 1,267,989.15 and 536,920.60 is: 740,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,967.63 : 1,267,989.15 = 536,920.60 : x
  2. Step 2: Convert to fraction form
    918,967.63/1,267,989.15 = 536,920.60/x
  3. Step 3: Cross multiply
    918,967.63x = 1,267,989.15 × 536,920.60
  4. Step 4: Simplify right side
    918,967.63x = 680,809,495,211.49
  5. Step 5: Solve for x
    x = 680,809,495,211.49/918,967.63
  6. Step 6: Final answer
    x = 740,841.65

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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.