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Finding the Fourth Proportional to 524,702.40, 786,146.40 and 243,643.20

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Solution

The fourth proportional to 524,702.40, 786,146.40 and 243,643.20 is: 365,043.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,702.40 : 786,146.40 = 243,643.20 : x
  2. Step 2: Convert to fraction form
    524,702.40/786,146.40 = 243,643.20/x
  3. Step 3: Cross multiply
    524,702.40x = 786,146.40 × 243,643.20
  4. Step 4: Simplify right side
    524,702.40x = 191,539,224,564.48
  5. Step 5: Solve for x
    x = 191,539,224,564.48/524,702.40
  6. Step 6: Final answer
    x = 365,043.55

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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.