Home / 703,742.10-971,077.16-499,718.58

Finding the Fourth Proportional to 703,742.10, 971,077.16 and 499,718.58

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Solution

The fourth proportional to 703,742.10, 971,077.16 and 499,718.58 is: 689,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,742.10 : 971,077.16 = 499,718.58 : x
  2. Step 2: Convert to fraction form
    703,742.10/971,077.16 = 499,718.58/x
  3. Step 3: Cross multiply
    703,742.10x = 971,077.16 × 499,718.58
  4. Step 4: Simplify right side
    703,742.10x = 485,265,299,465.63
  5. Step 5: Solve for x
    x = 485,265,299,465.63/703,742.10
  6. Step 6: Final answer
    x = 689,549.91

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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.