Home / 743,590.54-1,026,152.28-421,362.21

Finding the Fourth Proportional to 743,590.54, 1,026,152.28 and 421,362.21

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Solution

The fourth proportional to 743,590.54, 1,026,152.28 and 421,362.21 is: 581,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,590.54 : 1,026,152.28 = 421,362.21 : x
  2. Step 2: Convert to fraction form
    743,590.54/1,026,152.28 = 421,362.21/x
  3. Step 3: Cross multiply
    743,590.54x = 1,026,152.28 × 421,362.21
  4. Step 4: Simplify right side
    743,590.54x = 432,381,796,345.41
  5. Step 5: Solve for x
    x = 432,381,796,345.41/743,590.54
  6. Step 6: Final answer
    x = 581,478.34

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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.