Home / 708,705.56-1,063,556.48-640,946.84

Finding the Fourth Proportional to 708,705.56, 1,063,556.48 and 640,946.84

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Solution

The fourth proportional to 708,705.56, 1,063,556.48 and 640,946.84 is: 961,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,705.56 : 1,063,556.48 = 640,946.84 : x
  2. Step 2: Convert to fraction form
    708,705.56/1,063,556.48 = 640,946.84/x
  3. Step 3: Cross multiply
    708,705.56x = 1,063,556.48 × 640,946.84
  4. Step 4: Simplify right side
    708,705.56x = 681,683,165,017.52
  5. Step 5: Solve for x
    x = 681,683,165,017.52/708,705.56
  6. Step 6: Final answer
    x = 961,870.77

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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.