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Finding the Fourth Proportional to 556,315.39, 767,715.67 and 301,666.58

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Solution

The fourth proportional to 556,315.39, 767,715.67 and 301,666.58 is: 416,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,315.39 : 767,715.67 = 301,666.58 : x
  2. Step 2: Convert to fraction form
    556,315.39/767,715.67 = 301,666.58/x
  3. Step 3: Cross multiply
    556,315.39x = 767,715.67 × 301,666.58
  4. Step 4: Simplify right side
    556,315.39x = 231,594,159,998.75
  5. Step 5: Solve for x
    x = 231,594,159,998.75/556,315.39
  6. Step 6: Final answer
    x = 416,300.11

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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.