Home / 742,953.42-1,025,279.91-403,421.76

Finding the Fourth Proportional to 742,953.42, 1,025,279.91 and 403,421.76

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Solution

The fourth proportional to 742,953.42, 1,025,279.91 and 403,421.76 is: 556,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,953.42 : 1,025,279.91 = 403,421.76 : x
  2. Step 2: Convert to fraction form
    742,953.42/1,025,279.91 = 403,421.76/x
  3. Step 3: Cross multiply
    742,953.42x = 1,025,279.91 × 403,421.76
  4. Step 4: Simplify right side
    742,953.42x = 413,620,225,784.84
  5. Step 5: Solve for x
    x = 413,620,225,784.84/742,953.42
  6. Step 6: Final answer
    x = 556,724.30

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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.