Home / 743,563.41-1,026,210.51-421,377.31

Finding the Fourth Proportional to 743,563.41, 1,026,210.51 and 421,377.31

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Solution

The fourth proportional to 743,563.41, 1,026,210.51 and 421,377.31 is: 581,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,563.41 : 1,026,210.51 = 421,377.31 : x
  2. Step 2: Convert to fraction form
    743,563.41/1,026,210.51 = 421,377.31/x
  3. Step 3: Cross multiply
    743,563.41x = 1,026,210.51 × 421,377.31
  4. Step 4: Simplify right side
    743,563.41x = 432,421,824,197.53
  5. Step 5: Solve for x
    x = 432,421,824,197.53/743,563.41
  6. Step 6: Final answer
    x = 581,553.39

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Double scale
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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.