Home / 688,434.80-1,032,652.20-618,450.80

Finding the Fourth Proportional to 688,434.80, 1,032,652.20 and 618,450.80

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Solution

The fourth proportional to 688,434.80, 1,032,652.20 and 618,450.80 is: 927,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,434.80 : 1,032,652.20 = 618,450.80 : x
  2. Step 2: Convert to fraction form
    688,434.80/1,032,652.20 = 618,450.80/x
  3. Step 3: Cross multiply
    688,434.80x = 1,032,652.20 × 618,450.80
  4. Step 4: Simplify right side
    688,434.80x = 638,644,579,211.76
  5. Step 5: Solve for x
    x = 638,644,579,211.76/688,434.80
  6. Step 6: Final answer
    x = 927,676.20

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1.5x scale

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.