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Finding the Fourth Proportional to 524,468.40, 786,642.12 and 145,417.20

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Solution

The fourth proportional to 524,468.40, 786,642.12 and 145,417.20 is: 218,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,468.40 : 786,642.12 = 145,417.20 : x
  2. Step 2: Convert to fraction form
    524,468.40/786,642.12 = 145,417.20/x
  3. Step 3: Cross multiply
    524,468.40x = 786,642.12 × 145,417.20
  4. Step 4: Simplify right side
    524,468.40x = 114,391,294,492.46
  5. Step 5: Solve for x
    x = 114,391,294,492.46/524,468.40
  6. Step 6: Final answer
    x = 218,109.03

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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.