Home / 742,776.80-1,025,026.48-403,236.32

Finding the Fourth Proportional to 742,776.80, 1,025,026.48 and 403,236.32

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Solution

The fourth proportional to 742,776.80, 1,025,026.48 and 403,236.32 is: 556,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,776.80 : 1,025,026.48 = 403,236.32 : x
  2. Step 2: Convert to fraction form
    742,776.80/1,025,026.48 = 403,236.32/x
  3. Step 3: Cross multiply
    742,776.80x = 1,025,026.48 × 403,236.32
  4. Step 4: Simplify right side
    742,776.80x = 413,327,905,697.75
  5. Step 5: Solve for x
    x = 413,327,905,697.75/742,776.80
  6. Step 6: Final answer
    x = 556,463.13

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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.