Home / 680,913.30-1,021,369.95-607,430.10

Finding the Fourth Proportional to 680,913.30, 1,021,369.95 and 607,430.10

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Solution

The fourth proportional to 680,913.30, 1,021,369.95 and 607,430.10 is: 911,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,913.30 : 1,021,369.95 = 607,430.10 : x
  2. Step 2: Convert to fraction form
    680,913.30/1,021,369.95 = 607,430.10/x
  3. Step 3: Cross multiply
    680,913.30x = 1,021,369.95 × 607,430.10
  4. Step 4: Simplify right side
    680,913.30x = 620,410,850,865.50
  5. Step 5: Solve for x
    x = 620,410,850,865.50/680,913.30
  6. Step 6: Final answer
    x = 911,145.15

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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.