Home / 676,931.60-1,015,397.40-645,827.60

Finding the Fourth Proportional to 676,931.60, 1,015,397.40 and 645,827.60

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Solution

The fourth proportional to 676,931.60, 1,015,397.40 and 645,827.60 is: 968,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,931.60 : 1,015,397.40 = 645,827.60 : x
  2. Step 2: Convert to fraction form
    676,931.60/1,015,397.40 = 645,827.60/x
  3. Step 3: Cross multiply
    676,931.60x = 1,015,397.40 × 645,827.60
  4. Step 4: Simplify right side
    676,931.60x = 655,771,665,888.24
  5. Step 5: Solve for x
    x = 655,771,665,888.24/676,931.60
  6. Step 6: Final answer
    x = 968,741.40

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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.