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Finding the Fourth Proportional to 654,430.82, 903,004.48 and 364,004.51

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Solution

The fourth proportional to 654,430.82, 903,004.48 and 364,004.51 is: 502,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,430.82 : 903,004.48 = 364,004.51 : x
  2. Step 2: Convert to fraction form
    654,430.82/903,004.48 = 364,004.51/x
  3. Step 3: Cross multiply
    654,430.82x = 903,004.48 × 364,004.51
  4. Step 4: Simplify right side
    654,430.82x = 328,697,697,845.17
  5. Step 5: Solve for x
    x = 328,697,697,845.17/654,430.82
  6. Step 6: Final answer
    x = 502,265.01

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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.