Home / 563,117.16-777,101.82-308,477.40

Finding the Fourth Proportional to 563,117.16, 777,101.82 and 308,477.40

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Solution

The fourth proportional to 563,117.16, 777,101.82 and 308,477.40 is: 425,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,117.16 : 777,101.82 = 308,477.40 : x
  2. Step 2: Convert to fraction form
    563,117.16/777,101.82 = 308,477.40/x
  3. Step 3: Cross multiply
    563,117.16x = 777,101.82 × 308,477.40
  4. Step 4: Simplify right side
    563,117.16x = 239,718,348,968.87
  5. Step 5: Solve for x
    x = 239,718,348,968.87/563,117.16
  6. Step 6: Final answer
    x = 425,698.89

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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.