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Finding the Fourth Proportional to 486,025.60, 729,038.40 and 297,068.80

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Solution

The fourth proportional to 486,025.60, 729,038.40 and 297,068.80 is: 445,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,025.60 : 729,038.40 = 297,068.80 : x
  2. Step 2: Convert to fraction form
    486,025.60/729,038.40 = 297,068.80/x
  3. Step 3: Cross multiply
    486,025.60x = 729,038.40 × 297,068.80
  4. Step 4: Simplify right side
    486,025.60x = 216,574,562,641.92
  5. Step 5: Solve for x
    x = 216,574,562,641.92/486,025.60
  6. Step 6: Final answer
    x = 445,603.20

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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.