Home / 947,802.32-1,421,776.96-316,718.40

Finding the Fourth Proportional to 947,802.32, 1,421,776.96 and 316,718.40

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Solution

The fourth proportional to 947,802.32, 1,421,776.96 and 316,718.40 is: 475,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,802.32 : 1,421,776.96 = 316,718.40 : x
  2. Step 2: Convert to fraction form
    947,802.32/1,421,776.96 = 316,718.40/x
  3. Step 3: Cross multiply
    947,802.32x = 1,421,776.96 × 316,718.40
  4. Step 4: Simplify right side
    947,802.32x = 450,302,923,928.06
  5. Step 5: Solve for x
    x = 450,302,923,928.06/947,802.32
  6. Step 6: Final answer
    x = 475,102.15

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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.