Home / 688,073.72-1,031,569.76-434,821.56

Finding the Fourth Proportional to 688,073.72, 1,031,569.76 and 434,821.56

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Solution

The fourth proportional to 688,073.72, 1,031,569.76 and 434,821.56 is: 651,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,073.72 : 1,031,569.76 = 434,821.56 : x
  2. Step 2: Convert to fraction form
    688,073.72/1,031,569.76 = 434,821.56/x
  3. Step 3: Cross multiply
    688,073.72x = 1,031,569.76 × 434,821.56
  4. Step 4: Simplify right side
    688,073.72x = 448,548,772,292.03
  5. Step 5: Solve for x
    x = 448,548,772,292.03/688,073.72
  6. Step 6: Final answer
    x = 651,890.57

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Double scale
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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.