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Finding the Fourth Proportional to 508,676.40, 761,702.40 and 403,700.40

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Solution

The fourth proportional to 508,676.40, 761,702.40 and 403,700.40 is: 604,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,676.40 : 761,702.40 = 403,700.40 : x
  2. Step 2: Convert to fraction form
    508,676.40/761,702.40 = 403,700.40/x
  3. Step 3: Cross multiply
    508,676.40x = 761,702.40 × 403,700.40
  4. Step 4: Simplify right side
    508,676.40x = 307,499,563,560.96
  5. Step 5: Solve for x
    x = 307,499,563,560.96/508,676.40
  6. Step 6: Final answer
    x = 604,509.20

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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.