Home / 771,784.61-1,064,723.51-465,690.27

Finding the Fourth Proportional to 771,784.61, 1,064,723.51 and 465,690.27

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Solution

The fourth proportional to 771,784.61, 1,064,723.51 and 465,690.27 is: 642,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,784.61 : 1,064,723.51 = 465,690.27 : x
  2. Step 2: Convert to fraction form
    771,784.61/1,064,723.51 = 465,690.27/x
  3. Step 3: Cross multiply
    771,784.61x = 1,064,723.51 × 465,690.27
  4. Step 4: Simplify right side
    771,784.61x = 495,831,376,518.80
  5. Step 5: Solve for x
    x = 495,831,376,518.80/771,784.61
  6. Step 6: Final answer
    x = 642,447.86

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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.