Home / 688,661.60-1,032,992.40-611,897.90

Finding the Fourth Proportional to 688,661.60, 1,032,992.40 and 611,897.90

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Solution

The fourth proportional to 688,661.60, 1,032,992.40 and 611,897.90 is: 917,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,661.60 : 1,032,992.40 = 611,897.90 : x
  2. Step 2: Convert to fraction form
    688,661.60/1,032,992.40 = 611,897.90/x
  3. Step 3: Cross multiply
    688,661.60x = 1,032,992.40 × 611,897.90
  4. Step 4: Simplify right side
    688,661.60x = 632,085,880,275.96
  5. Step 5: Solve for x
    x = 632,085,880,275.96/688,661.60
  6. Step 6: Final answer
    x = 917,846.85

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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.