Home / 669,920.10-1,002,547.35-459,968.10

Finding the Fourth Proportional to 669,920.10, 1,002,547.35 and 459,968.10

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Solution

The fourth proportional to 669,920.10, 1,002,547.35 and 459,968.10 is: 688,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,920.10 : 1,002,547.35 = 459,968.10 : x
  2. Step 2: Convert to fraction form
    669,920.10/1,002,547.35 = 459,968.10/x
  3. Step 3: Cross multiply
    669,920.10x = 1,002,547.35 × 459,968.10
  4. Step 4: Simplify right side
    669,920.10x = 461,139,799,739.54
  5. Step 5: Solve for x
    x = 461,139,799,739.54/669,920.10
  6. Step 6: Final answer
    x = 688,350.45

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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.