Home / 1,690,128.48-2,533,486.80-1,059,485.16

Finding the Fourth Proportional to 1,690,128.48, 2,533,486.80 and 1,059,485.16

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Solution

The fourth proportional to 1,690,128.48, 2,533,486.80 and 1,059,485.16 is: 1,588,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,128.48 : 2,533,486.80 = 1,059,485.16 : x
  2. Step 2: Convert to fraction form
    1,690,128.48/2,533,486.80 = 1,059,485.16/x
  3. Step 3: Cross multiply
    1,690,128.48x = 2,533,486.80 × 1,059,485.16
  4. Step 4: Simplify right side
    1,690,128.48x = 2,684,191,667,655.89
  5. Step 5: Solve for x
    x = 2,684,191,667,655.89/1,690,128.48
  6. Step 6: Final answer
    x = 1,588,158.36

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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.