Home / 996,985.40-1,495,478.10-642,691.40

Finding the Fourth Proportional to 996,985.40, 1,495,478.10 and 642,691.40

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Solution

The fourth proportional to 996,985.40, 1,495,478.10 and 642,691.40 is: 964,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,985.40 : 1,495,478.10 = 642,691.40 : x
  2. Step 2: Convert to fraction form
    996,985.40/1,495,478.10 = 642,691.40/x
  3. Step 3: Cross multiply
    996,985.40x = 1,495,478.10 × 642,691.40
  4. Step 4: Simplify right side
    996,985.40x = 961,130,913,758.34
  5. Step 5: Solve for x
    x = 961,130,913,758.34/996,985.40
  6. Step 6: Final answer
    x = 964,037.10

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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.