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Finding the Fourth Proportional to 849,978.60, 1,276,868.70 and 710,010.60

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Solution

The fourth proportional to 849,978.60, 1,276,868.70 and 710,010.60 is: 1,066,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,978.60 : 1,276,868.70 = 710,010.60 : x
  2. Step 2: Convert to fraction form
    849,978.60/1,276,868.70 = 710,010.60/x
  3. Step 3: Cross multiply
    849,978.60x = 1,276,868.70 × 710,010.60
  4. Step 4: Simplify right side
    849,978.60x = 906,590,311,808.22
  5. Step 5: Solve for x
    x = 906,590,311,808.22/849,978.60
  6. Step 6: Final answer
    x = 1,066,603.69

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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.