Home / 771,824.40-1,064,778.12-465,730.20

Finding the Fourth Proportional to 771,824.40, 1,064,778.12 and 465,730.20

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Solution

The fourth proportional to 771,824.40, 1,064,778.12 and 465,730.20 is: 642,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,824.40 : 1,064,778.12 = 465,730.20 : x
  2. Step 2: Convert to fraction form
    771,824.40/1,064,778.12 = 465,730.20/x
  3. Step 3: Cross multiply
    771,824.40x = 1,064,778.12 × 465,730.20
  4. Step 4: Simplify right side
    771,824.40x = 495,899,326,783.22
  5. Step 5: Solve for x
    x = 495,899,326,783.22/771,824.40
  6. Step 6: Final answer
    x = 642,502.79

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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.