Home / 810,430.80-1,214,042.40-710,703.60

Finding the Fourth Proportional to 810,430.80, 1,214,042.40 and 710,703.60

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Solution

The fourth proportional to 810,430.80, 1,214,042.40 and 710,703.60 is: 1,064,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,430.80 : 1,214,042.40 = 710,703.60 : x
  2. Step 2: Convert to fraction form
    810,430.80/1,214,042.40 = 710,703.60/x
  3. Step 3: Cross multiply
    810,430.80x = 1,214,042.40 × 710,703.60
  4. Step 4: Simplify right side
    810,430.80x = 862,824,304,232.64
  5. Step 5: Solve for x
    x = 862,824,304,232.64/810,430.80
  6. Step 6: Final answer
    x = 1,064,648.95

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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.