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Finding the Fourth Proportional to 614,925.40, 922,388.10 and 490,509.40

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Solution

The fourth proportional to 614,925.40, 922,388.10 and 490,509.40 is: 735,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,925.40 : 922,388.10 = 490,509.40 : x
  2. Step 2: Convert to fraction form
    614,925.40/922,388.10 = 490,509.40/x
  3. Step 3: Cross multiply
    614,925.40x = 922,388.10 × 490,509.40
  4. Step 4: Simplify right side
    614,925.40x = 452,440,033,498.14
  5. Step 5: Solve for x
    x = 452,440,033,498.14/614,925.40
  6. Step 6: Final answer
    x = 735,764.10

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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.