Home / 904,980.51-1,249,090.61-518,020.25

Finding the Fourth Proportional to 904,980.51, 1,249,090.61 and 518,020.25

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Solution

The fourth proportional to 904,980.51, 1,249,090.61 and 518,020.25 is: 714,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,980.51 : 1,249,090.61 = 518,020.25 : x
  2. Step 2: Convert to fraction form
    904,980.51/1,249,090.61 = 518,020.25/x
  3. Step 3: Cross multiply
    904,980.51x = 1,249,090.61 × 518,020.25
  4. Step 4: Simplify right side
    904,980.51x = 647,054,224,143.16
  5. Step 5: Solve for x
    x = 647,054,224,143.16/904,980.51
  6. Step 6: Final answer
    x = 714,992.44

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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.