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Finding the Fourth Proportional to 556,807.77, 768,397.19 and 302,159.16

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Solution

The fourth proportional to 556,807.77, 768,397.19 and 302,159.16 is: 416,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,807.77 : 768,397.19 = 302,159.16 : x
  2. Step 2: Convert to fraction form
    556,807.77/768,397.19 = 302,159.16/x
  3. Step 3: Cross multiply
    556,807.77x = 768,397.19 × 302,159.16
  4. Step 4: Simplify right side
    556,807.77x = 232,178,247,965.97
  5. Step 5: Solve for x
    x = 232,178,247,965.97/556,807.77
  6. Step 6: Final answer
    x = 416,980.98

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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.