Home / 771,219.12-1,064,281.71-427,055.03

Finding the Fourth Proportional to 771,219.12, 1,064,281.71 and 427,055.03

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Solution

The fourth proportional to 771,219.12, 1,064,281.71 and 427,055.03 is: 589,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,219.12 : 1,064,281.71 = 427,055.03 : x
  2. Step 2: Convert to fraction form
    771,219.12/1,064,281.71 = 427,055.03/x
  3. Step 3: Cross multiply
    771,219.12x = 1,064,281.71 × 427,055.03
  4. Step 4: Simplify right side
    771,219.12x = 454,506,863,850.19
  5. Step 5: Solve for x
    x = 454,506,863,850.19/771,219.12
  6. Step 6: Final answer
    x = 589,335.57

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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.