Home / 1,019,802.84-1,529,878.53-420,436.35

Finding the Fourth Proportional to 1,019,802.84, 1,529,878.53 and 420,436.35

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Solution

The fourth proportional to 1,019,802.84, 1,529,878.53 and 420,436.35 is: 630,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,802.84 : 1,529,878.53 = 420,436.35 : x
  2. Step 2: Convert to fraction form
    1,019,802.84/1,529,878.53 = 420,436.35/x
  3. Step 3: Cross multiply
    1,019,802.84x = 1,529,878.53 × 420,436.35
  4. Step 4: Simplify right side
    1,019,802.84x = 643,216,545,096.57
  5. Step 5: Solve for x
    x = 643,216,545,096.57/1,019,802.84
  6. Step 6: Final answer
    x = 630,726.37

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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.