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Finding the Fourth Proportional to 616,395.24, 850,074.75 and 386,973.93

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Solution

The fourth proportional to 616,395.24, 850,074.75 and 386,973.93 is: 533,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,395.24 : 850,074.75 = 386,973.93 : x
  2. Step 2: Convert to fraction form
    616,395.24/850,074.75 = 386,973.93/x
  3. Step 3: Cross multiply
    616,395.24x = 850,074.75 × 386,973.93
  4. Step 4: Simplify right side
    616,395.24x = 328,956,767,598.21
  5. Step 5: Solve for x
    x = 328,956,767,598.21/616,395.24
  6. Step 6: Final answer
    x = 533,678.30

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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.