Home / 743,785.68-1,026,431.01-404,254.74

Finding the Fourth Proportional to 743,785.68, 1,026,431.01 and 404,254.74

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Solution

The fourth proportional to 743,785.68, 1,026,431.01 and 404,254.74 is: 557,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,785.68 : 1,026,431.01 = 404,254.74 : x
  2. Step 2: Convert to fraction form
    743,785.68/1,026,431.01 = 404,254.74/x
  3. Step 3: Cross multiply
    743,785.68x = 1,026,431.01 × 404,254.74
  4. Step 4: Simplify right side
    743,785.68x = 414,939,601,075.49
  5. Step 5: Solve for x
    x = 414,939,601,075.49/743,785.68
  6. Step 6: Final answer
    x = 557,875.22

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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.