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Finding the Fourth Proportional to 501,710.80, 692,329.80 and 275,354.68

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Solution

The fourth proportional to 501,710.80, 692,329.80 and 275,354.68 is: 379,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,710.80 : 692,329.80 = 275,354.68 : x
  2. Step 2: Convert to fraction form
    501,710.80/692,329.80 = 275,354.68/x
  3. Step 3: Cross multiply
    501,710.80x = 692,329.80 × 275,354.68
  4. Step 4: Simplify right side
    501,710.80x = 190,636,250,533.46
  5. Step 5: Solve for x
    x = 190,636,250,533.46/501,710.80
  6. Step 6: Final answer
    x = 379,972.39

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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.