Home / 679,977.60-1,019,966.40-561,782.40

Finding the Fourth Proportional to 679,977.60, 1,019,966.40 and 561,782.40

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Solution

The fourth proportional to 679,977.60, 1,019,966.40 and 561,782.40 is: 842,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,977.60 : 1,019,966.40 = 561,782.40 : x
  2. Step 2: Convert to fraction form
    679,977.60/1,019,966.40 = 561,782.40/x
  3. Step 3: Cross multiply
    679,977.60x = 1,019,966.40 × 561,782.40
  4. Step 4: Simplify right side
    679,977.60x = 572,999,172,111.36
  5. Step 5: Solve for x
    x = 572,999,172,111.36/679,977.60
  6. Step 6: Final answer
    x = 842,673.60

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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.