Home / 904,980.79-1,249,091-518,020.53

Finding the Fourth Proportional to 904,980.79, 1,249,091 and 518,020.53

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Solution

The fourth proportional to 904,980.79, 1,249,091 and 518,020.53 is: 714,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,980.79 : 1,249,091 = 518,020.53 : x
  2. Step 2: Convert to fraction form
    904,980.79/1,249,091 = 518,020.53/x
  3. Step 3: Cross multiply
    904,980.79x = 1,249,091 × 518,020.53
  4. Step 4: Simplify right side
    904,980.79x = 647,054,781,838.23
  5. Step 5: Solve for x
    x = 647,054,781,838.23/904,980.79
  6. Step 6: Final answer
    x = 714,992.84

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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.