Home / 904,080.78-1,247,689.74-501,672.78

Finding the Fourth Proportional to 904,080.78, 1,247,689.74 and 501,672.78

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Solution

The fourth proportional to 904,080.78, 1,247,689.74 and 501,672.78 is: 692,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,080.78 : 1,247,689.74 = 501,672.78 : x
  2. Step 2: Convert to fraction form
    904,080.78/1,247,689.74 = 501,672.78/x
  3. Step 3: Cross multiply
    904,080.78x = 1,247,689.74 × 501,672.78
  4. Step 4: Simplify right side
    904,080.78x = 625,931,980,443.28
  5. Step 5: Solve for x
    x = 625,931,980,443.28/904,080.78
  6. Step 6: Final answer
    x = 692,340.77

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1.5x scale

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.