Home / 743,534.57-1,026,075.20-421,306.11

Finding the Fourth Proportional to 743,534.57, 1,026,075.20 and 421,306.11

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Solution

The fourth proportional to 743,534.57, 1,026,075.20 and 421,306.11 is: 581,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,534.57 : 1,026,075.20 = 421,306.11 : x
  2. Step 2: Convert to fraction form
    743,534.57/1,026,075.20 = 421,306.11/x
  3. Step 3: Cross multiply
    743,534.57x = 1,026,075.20 × 421,306.11
  4. Step 4: Simplify right side
    743,534.57x = 432,291,748,972.94
  5. Step 5: Solve for x
    x = 432,291,748,972.94/743,534.57
  6. Step 6: Final answer
    x = 581,401.01

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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.