Home / 710,511.70-1,065,767.55-512,223.70

Finding the Fourth Proportional to 710,511.70, 1,065,767.55 and 512,223.70

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Solution

The fourth proportional to 710,511.70, 1,065,767.55 and 512,223.70 is: 768,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,511.70 : 1,065,767.55 = 512,223.70 : x
  2. Step 2: Convert to fraction form
    710,511.70/1,065,767.55 = 512,223.70/x
  3. Step 3: Cross multiply
    710,511.70x = 1,065,767.55 × 512,223.70
  4. Step 4: Simplify right side
    710,511.70x = 545,911,397,800.94
  5. Step 5: Solve for x
    x = 545,911,397,800.94/710,511.70
  6. Step 6: Final answer
    x = 768,335.55

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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.