Home / 771,911.73-1,065,244.47-427,753.45

Finding the Fourth Proportional to 771,911.73, 1,065,244.47 and 427,753.45

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Solution

The fourth proportional to 771,911.73, 1,065,244.47 and 427,753.45 is: 590,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,911.73 : 1,065,244.47 = 427,753.45 : x
  2. Step 2: Convert to fraction form
    771,911.73/1,065,244.47 = 427,753.45/x
  3. Step 3: Cross multiply
    771,911.73x = 1,065,244.47 × 427,753.45
  4. Step 4: Simplify right side
    771,911.73x = 455,661,998,821.27
  5. Step 5: Solve for x
    x = 455,661,998,821.27/771,911.73
  6. Step 6: Final answer
    x = 590,303.24

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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.