Home / 686,650.40-1,029,975.60-570,010.40

Finding the Fourth Proportional to 686,650.40, 1,029,975.60 and 570,010.40

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Solution

The fourth proportional to 686,650.40, 1,029,975.60 and 570,010.40 is: 855,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,650.40 : 1,029,975.60 = 570,010.40 : x
  2. Step 2: Convert to fraction form
    686,650.40/1,029,975.60 = 570,010.40/x
  3. Step 3: Cross multiply
    686,650.40x = 1,029,975.60 × 570,010.40
  4. Step 4: Simplify right side
    686,650.40x = 587,096,803,746.24
  5. Step 5: Solve for x
    x = 587,096,803,746.24/686,650.40
  6. Step 6: Final answer
    x = 855,015.60

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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.