Home / 874,516.70-1,312,005.45-313,492.70

Finding the Fourth Proportional to 874,516.70, 1,312,005.45 and 313,492.70

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Solution

The fourth proportional to 874,516.70, 1,312,005.45 and 313,492.70 is: 470,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,516.70 : 1,312,005.45 = 313,492.70 : x
  2. Step 2: Convert to fraction form
    874,516.70/1,312,005.45 = 313,492.70/x
  3. Step 3: Cross multiply
    874,516.70x = 1,312,005.45 × 313,492.70
  4. Step 4: Simplify right side
    874,516.70x = 411,304,130,935.22
  5. Step 5: Solve for x
    x = 411,304,130,935.22/874,516.70
  6. Step 6: Final answer
    x = 470,321.64

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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.