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Finding the Fourth Proportional to 889,000.10, 1,334,083.35 and 509,920.10

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Solution

The fourth proportional to 889,000.10, 1,334,083.35 and 509,920.10 is: 765,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,000.10 : 1,334,083.35 = 509,920.10 : x
  2. Step 2: Convert to fraction form
    889,000.10/1,334,083.35 = 509,920.10/x
  3. Step 3: Cross multiply
    889,000.10x = 1,334,083.35 × 509,920.10
  4. Step 4: Simplify right side
    889,000.10x = 680,275,915,240.34
  5. Step 5: Solve for x
    x = 680,275,915,240.34/889,000.10
  6. Step 6: Final answer
    x = 765,214.67

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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.