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Finding the Fourth Proportional to 556,808.40, 768,397.56 and 302,159.52

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Solution

The fourth proportional to 556,808.40, 768,397.56 and 302,159.52 is: 416,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,808.40 : 768,397.56 = 302,159.52 : x
  2. Step 2: Convert to fraction form
    556,808.40/768,397.56 = 302,159.52/x
  3. Step 3: Cross multiply
    556,808.40x = 768,397.56 × 302,159.52
  4. Step 4: Simplify right side
    556,808.40x = 232,178,637,898.77
  5. Step 5: Solve for x
    x = 232,178,637,898.77/556,808.40
  6. Step 6: Final answer
    x = 416,981.21

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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.