Home / 712,725.80-1,069,088.70-707,810.60

Finding the Fourth Proportional to 712,725.80, 1,069,088.70 and 707,810.60

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Solution

The fourth proportional to 712,725.80, 1,069,088.70 and 707,810.60 is: 1,061,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,725.80 : 1,069,088.70 = 707,810.60 : x
  2. Step 2: Convert to fraction form
    712,725.80/1,069,088.70 = 707,810.60/x
  3. Step 3: Cross multiply
    712,725.80x = 1,069,088.70 × 707,810.60
  4. Step 4: Simplify right side
    712,725.80x = 756,712,314,200.22
  5. Step 5: Solve for x
    x = 756,712,314,200.22/712,725.80
  6. Step 6: Final answer
    x = 1,061,715.90

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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.