Home / 709,931.80-1,064,897.70-655,864.60

Finding the Fourth Proportional to 709,931.80, 1,064,897.70 and 655,864.60

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Solution

The fourth proportional to 709,931.80, 1,064,897.70 and 655,864.60 is: 983,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,931.80 : 1,064,897.70 = 655,864.60 : x
  2. Step 2: Convert to fraction form
    709,931.80/1,064,897.70 = 655,864.60/x
  3. Step 3: Cross multiply
    709,931.80x = 1,064,897.70 × 655,864.60
  4. Step 4: Simplify right side
    709,931.80x = 698,428,704,051.42
  5. Step 5: Solve for x
    x = 698,428,704,051.42/709,931.80
  6. Step 6: Final answer
    x = 983,796.90

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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.