Home / 874,535.60-1,312,110.60-313,588.40

Finding the Fourth Proportional to 874,535.60, 1,312,110.60 and 313,588.40

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Solution

The fourth proportional to 874,535.60, 1,312,110.60 and 313,588.40 is: 470,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,535.60 : 1,312,110.60 = 313,588.40 : x
  2. Step 2: Convert to fraction form
    874,535.60/1,312,110.60 = 313,588.40/x
  3. Step 3: Cross multiply
    874,535.60x = 1,312,110.60 × 313,588.40
  4. Step 4: Simplify right side
    874,535.60x = 411,462,663,677.04
  5. Step 5: Solve for x
    x = 411,462,663,677.04/874,535.60
  6. Step 6: Final answer
    x = 470,492.75

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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.