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Finding the Fourth Proportional to 522,927.80, 783,225.30 and 429,615.80

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Solution

The fourth proportional to 522,927.80, 783,225.30 and 429,615.80 is: 643,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,927.80 : 783,225.30 = 429,615.80 : x
  2. Step 2: Convert to fraction form
    522,927.80/783,225.30 = 429,615.80/x
  3. Step 3: Cross multiply
    522,927.80x = 783,225.30 × 429,615.80
  4. Step 4: Simplify right side
    522,927.80x = 336,485,963,839.74
  5. Step 5: Solve for x
    x = 336,485,963,839.74/522,927.80
  6. Step 6: Final answer
    x = 643,465.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.