Home / 771,257.30-1,064,307.60-427,072.91

Finding the Fourth Proportional to 771,257.30, 1,064,307.60 and 427,072.91

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Solution

The fourth proportional to 771,257.30, 1,064,307.60 and 427,072.91 is: 589,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,257.30 : 1,064,307.60 = 427,072.91 : x
  2. Step 2: Convert to fraction form
    771,257.30/1,064,307.60 = 427,072.91/x
  3. Step 3: Cross multiply
    771,257.30x = 1,064,307.60 × 427,072.91
  4. Step 4: Simplify right side
    771,257.30x = 454,536,938,545.58
  5. Step 5: Solve for x
    x = 454,536,938,545.58/771,257.30
  6. Step 6: Final answer
    x = 589,345.40

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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.