Home / 563,444.05-777,548.31-308,794.63

Finding the Fourth Proportional to 563,444.05, 777,548.31 and 308,794.63

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Solution

The fourth proportional to 563,444.05, 777,548.31 and 308,794.63 is: 426,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,444.05 : 777,548.31 = 308,794.63 : x
  2. Step 2: Convert to fraction form
    563,444.05/777,548.31 = 308,794.63/x
  3. Step 3: Cross multiply
    563,444.05x = 777,548.31 × 308,794.63
  4. Step 4: Simplify right side
    563,444.05x = 240,102,742,693.58
  5. Step 5: Solve for x
    x = 240,102,742,693.58/563,444.05
  6. Step 6: Final answer
    x = 426,134.13

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1.5x scale

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.