Home / 401,430.20-602,145.30-267,877.40

Finding the Fourth Proportional to 401,430.20, 602,145.30 and 267,877.40

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Solution

The fourth proportional to 401,430.20, 602,145.30 and 267,877.40 is: 401,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,430.20 : 602,145.30 = 267,877.40 : x
  2. Step 2: Convert to fraction form
    401,430.20/602,145.30 = 267,877.40/x
  3. Step 3: Cross multiply
    401,430.20x = 602,145.30 × 267,877.40
  4. Step 4: Simplify right side
    401,430.20x = 161,301,117,386.22
  5. Step 5: Solve for x
    x = 161,301,117,386.22/401,430.20
  6. Step 6: Final answer
    x = 401,816.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.