Home / 1,506,129.93-2,078,402.54-817,786.90

Finding the Fourth Proportional to 1,506,129.93, 2,078,402.54 and 817,786.90

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Solution

The fourth proportional to 1,506,129.93, 2,078,402.54 and 817,786.90 is: 1,128,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506,129.93 : 2,078,402.54 = 817,786.90 : x
  2. Step 2: Convert to fraction form
    1,506,129.93/2,078,402.54 = 817,786.90/x
  3. Step 3: Cross multiply
    1,506,129.93x = 2,078,402.54 × 817,786.90
  4. Step 4: Simplify right side
    1,506,129.93x = 1,699,690,371,714.50
  5. Step 5: Solve for x
    x = 1,699,690,371,714.50/1,506,129.93
  6. Step 6: Final answer
    x = 1,128,515.10

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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.