Home / 785,430.36-1,083,865.48-480,017.64

Finding the Fourth Proportional to 785,430.36, 1,083,865.48 and 480,017.64

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Solution

The fourth proportional to 785,430.36, 1,083,865.48 and 480,017.64 is: 662,406.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,430.36 : 1,083,865.48 = 480,017.64 : x
  2. Step 2: Convert to fraction form
    785,430.36/1,083,865.48 = 480,017.64/x
  3. Step 3: Cross multiply
    785,430.36x = 1,083,865.48 × 480,017.64
  4. Step 4: Simplify right side
    785,430.36x = 520,274,549,787.07
  5. Step 5: Solve for x
    x = 520,274,549,787.07/785,430.36
  6. Step 6: Final answer
    x = 662,406.98

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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.