Home / 688,970.74-1,032,898.47-215,412.34

Finding the Fourth Proportional to 688,970.74, 1,032,898.47 and 215,412.34

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Solution

The fourth proportional to 688,970.74, 1,032,898.47 and 215,412.34 is: 322,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,970.74 : 1,032,898.47 = 215,412.34 : x
  2. Step 2: Convert to fraction form
    688,970.74/1,032,898.47 = 215,412.34/x
  3. Step 3: Cross multiply
    688,970.74x = 1,032,898.47 × 215,412.34
  4. Step 4: Simplify right side
    688,970.74x = 222,499,076,405.12
  5. Step 5: Solve for x
    x = 222,499,076,405.12/688,970.74
  6. Step 6: Final answer
    x = 322,944.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.