Home / 743,555.12-1,026,102.48-421,264.52

Finding the Fourth Proportional to 743,555.12, 1,026,102.48 and 421,264.52

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Solution

The fourth proportional to 743,555.12, 1,026,102.48 and 421,264.52 is: 581,343.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,555.12 : 1,026,102.48 = 421,264.52 : x
  2. Step 2: Convert to fraction form
    743,555.12/1,026,102.48 = 421,264.52/x
  3. Step 3: Cross multiply
    743,555.12x = 1,026,102.48 × 421,264.52
  4. Step 4: Simplify right side
    743,555.12x = 432,260,563,577.50
  5. Step 5: Solve for x
    x = 432,260,563,577.50/743,555.12
  6. Step 6: Final answer
    x = 581,343.00

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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.