Home / 727,810.40-1,091,715.60-697,095.20

Finding the Fourth Proportional to 727,810.40, 1,091,715.60 and 697,095.20

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Solution

The fourth proportional to 727,810.40, 1,091,715.60 and 697,095.20 is: 1,045,642.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,810.40 : 1,091,715.60 = 697,095.20 : x
  2. Step 2: Convert to fraction form
    727,810.40/1,091,715.60 = 697,095.20/x
  3. Step 3: Cross multiply
    727,810.40x = 1,091,715.60 × 697,095.20
  4. Step 4: Simplify right side
    727,810.40x = 761,029,704,525.12
  5. Step 5: Solve for x
    x = 761,029,704,525.12/727,810.40
  6. Step 6: Final answer
    x = 1,045,642.80

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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.