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Finding the Fourth Proportional to 706,690.70, 1,057,444.05 and 520,066.70

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Solution

The fourth proportional to 706,690.70, 1,057,444.05 and 520,066.70 is: 778,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,690.70 : 1,057,444.05 = 520,066.70 : x
  2. Step 2: Convert to fraction form
    706,690.70/1,057,444.05 = 520,066.70/x
  3. Step 3: Cross multiply
    706,690.70x = 1,057,444.05 × 520,066.70
  4. Step 4: Simplify right side
    706,690.70x = 549,941,437,518.14
  5. Step 5: Solve for x
    x = 549,941,437,518.14/706,690.70
  6. Step 6: Final answer
    x = 778,192.55

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