Home / 680,938.60-1,021,407.90-607,455.40

Finding the Fourth Proportional to 680,938.60, 1,021,407.90 and 607,455.40

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Solution

The fourth proportional to 680,938.60, 1,021,407.90 and 607,455.40 is: 911,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,938.60 : 1,021,407.90 = 607,455.40 : x
  2. Step 2: Convert to fraction form
    680,938.60/1,021,407.90 = 607,455.40/x
  3. Step 3: Cross multiply
    680,938.60x = 1,021,407.90 × 607,455.40
  4. Step 4: Simplify right side
    680,938.60x = 620,459,744,457.66
  5. Step 5: Solve for x
    x = 620,459,744,457.66/680,938.60
  6. Step 6: Final answer
    x = 911,183.10

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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.