Home / 1,280,946.31-1,767,702.64-729,661.93

Finding the Fourth Proportional to 1,280,946.31, 1,767,702.64 and 729,661.93

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Solution

The fourth proportional to 1,280,946.31, 1,767,702.64 and 729,661.93 is: 1,006,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,946.31 : 1,767,702.64 = 729,661.93 : x
  2. Step 2: Convert to fraction form
    1,280,946.31/1,767,702.64 = 729,661.93/x
  3. Step 3: Cross multiply
    1,280,946.31x = 1,767,702.64 × 729,661.93
  4. Step 4: Simplify right side
    1,280,946.31x = 1,289,825,319,968.50
  5. Step 5: Solve for x
    x = 1,289,825,319,968.50/1,280,946.31
  6. Step 6: Final answer
    x = 1,006,931.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.