Home / 1,133,421.72-1,564,114.32-624,120

Finding the Fourth Proportional to 1,133,421.72, 1,564,114.32 and 624,120

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Solution

The fourth proportional to 1,133,421.72, 1,564,114.32 and 624,120 is: 861,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,421.72 : 1,564,114.32 = 624,120 : x
  2. Step 2: Convert to fraction form
    1,133,421.72/1,564,114.32 = 624,120/x
  3. Step 3: Cross multiply
    1,133,421.72x = 1,564,114.32 × 624,120
  4. Step 4: Simplify right side
    1,133,421.72x = 976,195,029,398.40
  5. Step 5: Solve for x
    x = 976,195,029,398.40/1,133,421.72
  6. Step 6: Final answer
    x = 861,281.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.