Home / 743,927.88-1,026,598.86-421,667.64

Finding the Fourth Proportional to 743,927.88, 1,026,598.86 and 421,667.64

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Solution

The fourth proportional to 743,927.88, 1,026,598.86 and 421,667.64 is: 581,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,927.88 : 1,026,598.86 = 421,667.64 : x
  2. Step 2: Convert to fraction form
    743,927.88/1,026,598.86 = 421,667.64/x
  3. Step 3: Cross multiply
    743,927.88x = 1,026,598.86 × 421,667.64
  4. Step 4: Simplify right side
    743,927.88x = 432,883,518,522.89
  5. Step 5: Solve for x
    x = 432,883,518,522.89/743,927.88
  6. Step 6: Final answer
    x = 581,889.09

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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.