Home / 1,280,551.82-1,920,565.28-470,657.12

Finding the Fourth Proportional to 1,280,551.82, 1,920,565.28 and 470,657.12

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Solution

The fourth proportional to 1,280,551.82, 1,920,565.28 and 470,657.12 is: 705,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,551.82 : 1,920,565.28 = 470,657.12 : x
  2. Step 2: Convert to fraction form
    1,280,551.82/1,920,565.28 = 470,657.12/x
  3. Step 3: Cross multiply
    1,280,551.82x = 1,920,565.28 × 470,657.12
  4. Step 4: Simplify right side
    1,280,551.82x = 903,927,715,030.61
  5. Step 5: Solve for x
    x = 903,927,715,030.61/1,280,551.82
  6. Step 6: Final answer
    x = 705,889.21

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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.