Home / 614,579.60-921,869.40-402,003.20

Finding the Fourth Proportional to 614,579.60, 921,869.40 and 402,003.20

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Solution

The fourth proportional to 614,579.60, 921,869.40 and 402,003.20 is: 603,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,579.60 : 921,869.40 = 402,003.20 : x
  2. Step 2: Convert to fraction form
    614,579.60/921,869.40 = 402,003.20/x
  3. Step 3: Cross multiply
    614,579.60x = 921,869.40 × 402,003.20
  4. Step 4: Simplify right side
    614,579.60x = 370,594,448,782.08
  5. Step 5: Solve for x
    x = 370,594,448,782.08/614,579.60
  6. Step 6: Final answer
    x = 603,004.80

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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.