Home / 887,890.51-1,224,989.08-505,646.65

Finding the Fourth Proportional to 887,890.51, 1,224,989.08 and 505,646.65

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Solution

The fourth proportional to 887,890.51, 1,224,989.08 and 505,646.65 is: 697,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,890.51 : 1,224,989.08 = 505,646.65 : x
  2. Step 2: Convert to fraction form
    887,890.51/1,224,989.08 = 505,646.65/x
  3. Step 3: Cross multiply
    887,890.51x = 1,224,989.08 × 505,646.65
  4. Step 4: Simplify right side
    887,890.51x = 619,411,620,261.99
  5. Step 5: Solve for x
    x = 619,411,620,261.99/887,890.51
  6. Step 6: Final answer
    x = 697,621.63

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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.