Home / 717,721.70-1,076,582.55-291,256.70

Finding the Fourth Proportional to 717,721.70, 1,076,582.55 and 291,256.70

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Solution

The fourth proportional to 717,721.70, 1,076,582.55 and 291,256.70 is: 436,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,721.70 : 1,076,582.55 = 291,256.70 : x
  2. Step 2: Convert to fraction form
    717,721.70/1,076,582.55 = 291,256.70/x
  3. Step 3: Cross multiply
    717,721.70x = 1,076,582.55 × 291,256.70
  4. Step 4: Simplify right side
    717,721.70x = 313,561,880,790.59
  5. Step 5: Solve for x
    x = 313,561,880,790.59/717,721.70
  6. Step 6: Final answer
    x = 436,885.05

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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.