Home / 1,152,416.26-1,590,484.90-643,224.34

Finding the Fourth Proportional to 1,152,416.26, 1,590,484.90 and 643,224.34

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Solution

The fourth proportional to 1,152,416.26, 1,590,484.90 and 643,224.34 is: 887,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,416.26 : 1,590,484.90 = 643,224.34 : x
  2. Step 2: Convert to fraction form
    1,152,416.26/1,590,484.90 = 643,224.34/x
  3. Step 3: Cross multiply
    1,152,416.26x = 1,590,484.90 × 643,224.34
  4. Step 4: Simplify right side
    1,152,416.26x = 1,023,038,592,130.04
  5. Step 5: Solve for x
    x = 1,023,038,592,130.04/1,152,416.26
  6. Step 6: Final answer
    x = 887,733.57

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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.