Home / 779,771.02-1,076,023.95-440,272.78

Finding the Fourth Proportional to 779,771.02, 1,076,023.95 and 440,272.78

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Solution

The fourth proportional to 779,771.02, 1,076,023.95 and 440,272.78 is: 607,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,771.02 : 1,076,023.95 = 440,272.78 : x
  2. Step 2: Convert to fraction form
    779,771.02/1,076,023.95 = 440,272.78/x
  3. Step 3: Cross multiply
    779,771.02x = 1,076,023.95 × 440,272.78
  4. Step 4: Simplify right side
    779,771.02x = 473,744,055,813.08
  5. Step 5: Solve for x
    x = 473,744,055,813.08/779,771.02
  6. Step 6: Final answer
    x = 607,542.53

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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.