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Finding the Fourth Proportional to 464,526.99, 640,564.97 and 328,498.83

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Solution

The fourth proportional to 464,526.99, 640,564.97 and 328,498.83 is: 452,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,526.99 : 640,564.97 = 328,498.83 : x
  2. Step 2: Convert to fraction form
    464,526.99/640,564.97 = 328,498.83/x
  3. Step 3: Cross multiply
    464,526.99x = 640,564.97 × 328,498.83
  4. Step 4: Simplify right side
    464,526.99x = 210,424,841,541.49
  5. Step 5: Solve for x
    x = 210,424,841,541.49/464,526.99
  6. Step 6: Final answer
    x = 452,987.33

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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.