Home / 1,685,903.78-2,326,547.13-921,957.86

Finding the Fourth Proportional to 1,685,903.78, 2,326,547.13 and 921,957.86

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Solution

The fourth proportional to 1,685,903.78, 2,326,547.13 and 921,957.86 is: 1,272,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,903.78 : 2,326,547.13 = 921,957.86 : x
  2. Step 2: Convert to fraction form
    1,685,903.78/2,326,547.13 = 921,957.86/x
  3. Step 3: Cross multiply
    1,685,903.78x = 2,326,547.13 × 921,957.86
  4. Step 4: Simplify right side
    1,685,903.78x = 2,144,978,413,163.94
  5. Step 5: Solve for x
    x = 2,144,978,413,163.94/1,685,903.78
  6. Step 6: Final answer
    x = 1,272,301.80

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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.