Home / 771,824.90-1,064,778.81-465,730.70

Finding the Fourth Proportional to 771,824.90, 1,064,778.81 and 465,730.70

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Solution

The fourth proportional to 771,824.90, 1,064,778.81 and 465,730.70 is: 642,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,824.90 : 1,064,778.81 = 465,730.70 : x
  2. Step 2: Convert to fraction form
    771,824.90/1,064,778.81 = 465,730.70/x
  3. Step 3: Cross multiply
    771,824.90x = 1,064,778.81 × 465,730.70
  4. Step 4: Simplify right side
    771,824.90x = 495,900,180,526.47
  5. Step 5: Solve for x
    x = 495,900,180,526.47/771,824.90
  6. Step 6: Final answer
    x = 642,503.48

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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.