Home / 679,862.12-938,283.20-425,295.32

Finding the Fourth Proportional to 679,862.12, 938,283.20 and 425,295.32

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Solution

The fourth proportional to 679,862.12, 938,283.20 and 425,295.32 is: 586,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,862.12 : 938,283.20 = 425,295.32 : x
  2. Step 2: Convert to fraction form
    679,862.12/938,283.20 = 425,295.32/x
  3. Step 3: Cross multiply
    679,862.12x = 938,283.20 × 425,295.32
  4. Step 4: Simplify right side
    679,862.12x = 399,047,453,794.62
  5. Step 5: Solve for x
    x = 399,047,453,794.62/679,862.12
  6. Step 6: Final answer
    x = 586,953.50

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1.5x scale

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.