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Finding the Fourth Proportional to 556,802.79, 768,389.86 and 302,153.91

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Solution

The fourth proportional to 556,802.79, 768,389.86 and 302,153.91 is: 416,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,802.79 : 768,389.86 = 302,153.91 : x
  2. Step 2: Convert to fraction form
    556,802.79/768,389.86 = 302,153.91/x
  3. Step 3: Cross multiply
    556,802.79x = 768,389.86 × 302,153.91
  4. Step 4: Simplify right side
    556,802.79x = 232,172,000,603.35
  5. Step 5: Solve for x
    x = 232,172,000,603.35/556,802.79
  6. Step 6: Final answer
    x = 416,973.49

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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.