Home / 709,411.20-1,064,116.80-651,350.40

Finding the Fourth Proportional to 709,411.20, 1,064,116.80 and 651,350.40

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Solution

The fourth proportional to 709,411.20, 1,064,116.80 and 651,350.40 is: 977,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,411.20 : 1,064,116.80 = 651,350.40 : x
  2. Step 2: Convert to fraction form
    709,411.20/1,064,116.80 = 651,350.40/x
  3. Step 3: Cross multiply
    709,411.20x = 1,064,116.80 × 651,350.40
  4. Step 4: Simplify right side
    709,411.20x = 693,112,903,326.72
  5. Step 5: Solve for x
    x = 693,112,903,326.72/709,411.20
  6. Step 6: Final answer
    x = 977,025.60

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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.