Home / 709,701.20-1,064,551.80-651,640.40

Finding the Fourth Proportional to 709,701.20, 1,064,551.80 and 651,640.40

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Solution

The fourth proportional to 709,701.20, 1,064,551.80 and 651,640.40 is: 977,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,701.20 : 1,064,551.80 = 651,640.40 : x
  2. Step 2: Convert to fraction form
    709,701.20/1,064,551.80 = 651,640.40/x
  3. Step 3: Cross multiply
    709,701.20x = 1,064,551.80 × 651,640.40
  4. Step 4: Simplify right side
    709,701.20x = 693,704,960,772.72
  5. Step 5: Solve for x
    x = 693,704,960,772.72/709,701.20
  6. Step 6: Final answer
    x = 977,460.60

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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.