Home / 714,547.41-1,071,005.72-287,809.94

Finding the Fourth Proportional to 714,547.41, 1,071,005.72 and 287,809.94

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Solution

The fourth proportional to 714,547.41, 1,071,005.72 and 287,809.94 is: 431,386.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,547.41 : 1,071,005.72 = 287,809.94 : x
  2. Step 2: Convert to fraction form
    714,547.41/1,071,005.72 = 287,809.94/x
  3. Step 3: Cross multiply
    714,547.41x = 1,071,005.72 × 287,809.94
  4. Step 4: Simplify right side
    714,547.41x = 308,246,085,218.78
  5. Step 5: Solve for x
    x = 308,246,085,218.78/714,547.41
  6. Step 6: Final answer
    x = 431,386.47

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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.