Home / 742,587.28-1,024,771.56-403,055.68

Finding the Fourth Proportional to 742,587.28, 1,024,771.56 and 403,055.68

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Solution

The fourth proportional to 742,587.28, 1,024,771.56 and 403,055.68 is: 556,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,587.28 : 1,024,771.56 = 403,055.68 : x
  2. Step 2: Convert to fraction form
    742,587.28/1,024,771.56 = 403,055.68/x
  3. Step 3: Cross multiply
    742,587.28x = 1,024,771.56 × 403,055.68
  4. Step 4: Simplify right side
    742,587.28x = 413,039,997,960.46
  5. Step 5: Solve for x
    x = 413,039,997,960.46/742,587.28
  6. Step 6: Final answer
    x = 556,217.44

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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.