Home / 917,378.79-1,266,024.83-509,482.53

Finding the Fourth Proportional to 917,378.79, 1,266,024.83 and 509,482.53

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Solution

The fourth proportional to 917,378.79, 1,266,024.83 and 509,482.53 is: 703,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,378.79 : 1,266,024.83 = 509,482.53 : x
  2. Step 2: Convert to fraction form
    917,378.79/1,266,024.83 = 509,482.53/x
  3. Step 3: Cross multiply
    917,378.79x = 1,266,024.83 × 509,482.53
  4. Step 4: Simplify right side
    917,378.79x = 645,017,533,431.22
  5. Step 5: Solve for x
    x = 645,017,533,431.22/917,378.79
  6. Step 6: Final answer
    x = 703,109.27

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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.