Home / 1,319,460.64-1,820,848.08-715,835.68

Finding the Fourth Proportional to 1,319,460.64, 1,820,848.08 and 715,835.68

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Solution

The fourth proportional to 1,319,460.64, 1,820,848.08 and 715,835.68 is: 987,849.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,460.64 : 1,820,848.08 = 715,835.68 : x
  2. Step 2: Convert to fraction form
    1,319,460.64/1,820,848.08 = 715,835.68/x
  3. Step 3: Cross multiply
    1,319,460.64x = 1,820,848.08 × 715,835.68
  4. Step 4: Simplify right side
    1,319,460.64x = 1,303,428,023,523.49
  5. Step 5: Solve for x
    x = 1,303,428,023,523.49/1,319,460.64
  6. Step 6: Final answer
    x = 987,849.11

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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.