Home / 779,776.20-1,076,079.28-435,617.06

Finding the Fourth Proportional to 779,776.20, 1,076,079.28 and 435,617.06

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Solution

The fourth proportional to 779,776.20, 1,076,079.28 and 435,617.06 is: 601,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,776.20 : 1,076,079.28 = 435,617.06 : x
  2. Step 2: Convert to fraction form
    779,776.20/1,076,079.28 = 435,617.06/x
  3. Step 3: Cross multiply
    779,776.20x = 1,076,079.28 × 435,617.06
  4. Step 4: Simplify right side
    779,776.20x = 468,758,486,627.86
  5. Step 5: Solve for x
    x = 468,758,486,627.86/779,776.20
  6. Step 6: Final answer
    x = 601,144.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.