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Finding the Fourth Proportional to 556,948.88, 768,590.16 and 302,300

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Solution

The fourth proportional to 556,948.88, 768,590.16 and 302,300 is: 417,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,948.88 : 768,590.16 = 302,300 : x
  2. Step 2: Convert to fraction form
    556,948.88/768,590.16 = 302,300/x
  3. Step 3: Cross multiply
    556,948.88x = 768,590.16 × 302,300
  4. Step 4: Simplify right side
    556,948.88x = 232,344,805,368
  5. Step 5: Solve for x
    x = 232,344,805,368/556,948.88
  6. Step 6: Final answer
    x = 417,174.38

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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.