Home / 917,913.12-1,266,715.98-510,081.36

Finding the Fourth Proportional to 917,913.12, 1,266,715.98 and 510,081.36

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Solution

The fourth proportional to 917,913.12, 1,266,715.98 and 510,081.36 is: 703,909.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,913.12 : 1,266,715.98 = 510,081.36 : x
  2. Step 2: Convert to fraction form
    917,913.12/1,266,715.98 = 510,081.36/x
  3. Step 3: Cross multiply
    917,913.12x = 1,266,715.98 × 510,081.36
  4. Step 4: Simplify right side
    917,913.12x = 646,128,209,812.13
  5. Step 5: Solve for x
    x = 646,128,209,812.13/917,913.12
  6. Step 6: Final answer
    x = 703,909.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.