Home / 703,741.10-971,075.78-499,717.58

Finding the Fourth Proportional to 703,741.10, 971,075.78 and 499,717.58

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Solution

The fourth proportional to 703,741.10, 971,075.78 and 499,717.58 is: 689,548.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,741.10 : 971,075.78 = 499,717.58 : x
  2. Step 2: Convert to fraction form
    703,741.10/971,075.78 = 499,717.58/x
  3. Step 3: Cross multiply
    703,741.10x = 971,075.78 × 499,717.58
  4. Step 4: Simplify right side
    703,741.10x = 485,263,638,488.89
  5. Step 5: Solve for x
    x = 485,263,638,488.89/703,741.10
  6. Step 6: Final answer
    x = 689,548.53

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Double scale
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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.