Home / 1,287,702.88-1,931,897.84-446,253.92

Finding the Fourth Proportional to 1,287,702.88, 1,931,897.84 and 446,253.92

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Solution

The fourth proportional to 1,287,702.88, 1,931,897.84 and 446,253.92 is: 669,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,702.88 : 1,931,897.84 = 446,253.92 : x
  2. Step 2: Convert to fraction form
    1,287,702.88/1,931,897.84 = 446,253.92/x
  3. Step 3: Cross multiply
    1,287,702.88x = 1,931,897.84 × 446,253.92
  4. Step 4: Simplify right side
    1,287,702.88x = 862,116,984,139.53
  5. Step 5: Solve for x
    x = 862,116,984,139.53/1,287,702.88
  6. Step 6: Final answer
    x = 669,499.93

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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.