Home / 989,291.64-1,484,045-315,214.50

Finding the Fourth Proportional to 989,291.64, 1,484,045 and 315,214.50

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Solution

The fourth proportional to 989,291.64, 1,484,045 and 315,214.50 is: 472,856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,291.64 : 1,484,045 = 315,214.50 : x
  2. Step 2: Convert to fraction form
    989,291.64/1,484,045 = 315,214.50/x
  3. Step 3: Cross multiply
    989,291.64x = 1,484,045 × 315,214.50
  4. Step 4: Simplify right side
    989,291.64x = 467,792,502,652.50
  5. Step 5: Solve for x
    x = 467,792,502,652.50/989,291.64
  6. Step 6: Final answer
    x = 472,856.02

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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.