Home / 1,256,985.73-1,886,235.14-458,335.45

Finding the Fourth Proportional to 1,256,985.73, 1,886,235.14 and 458,335.45

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Solution

The fourth proportional to 1,256,985.73, 1,886,235.14 and 458,335.45 is: 687,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,985.73 : 1,886,235.14 = 458,335.45 : x
  2. Step 2: Convert to fraction form
    1,256,985.73/1,886,235.14 = 458,335.45/x
  3. Step 3: Cross multiply
    1,256,985.73x = 1,886,235.14 × 458,335.45
  4. Step 4: Simplify right side
    1,256,985.73x = 864,528,431,697.71
  5. Step 5: Solve for x
    x = 864,528,431,697.71/1,256,985.73
  6. Step 6: Final answer
    x = 687,779.03

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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.