Home / 743,506.77-1,026,035.77-421,216.10

Finding the Fourth Proportional to 743,506.77, 1,026,035.77 and 421,216.10

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Solution

The fourth proportional to 743,506.77, 1,026,035.77 and 421,216.10 is: 581,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,506.77 : 1,026,035.77 = 421,216.10 : x
  2. Step 2: Convert to fraction form
    743,506.77/1,026,035.77 = 421,216.10/x
  3. Step 3: Cross multiply
    743,506.77x = 1,026,035.77 × 421,216.10
  4. Step 4: Simplify right side
    743,506.77x = 432,182,787,011.95
  5. Step 5: Solve for x
    x = 432,182,787,011.95/743,506.77
  6. Step 6: Final answer
    x = 581,276.20

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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.