Home / 876,442.45-1,209,458.81-549,931.46

Finding the Fourth Proportional to 876,442.45, 1,209,458.81 and 549,931.46

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Solution

The fourth proportional to 876,442.45, 1,209,458.81 and 549,931.46 is: 758,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,442.45 : 1,209,458.81 = 549,931.46 : x
  2. Step 2: Convert to fraction form
    876,442.45/1,209,458.81 = 549,931.46/x
  3. Step 3: Cross multiply
    876,442.45x = 1,209,458.81 × 549,931.46
  4. Step 4: Simplify right side
    876,442.45x = 665,119,448,926.14
  5. Step 5: Solve for x
    x = 665,119,448,926.14/876,442.45
  6. Step 6: Final answer
    x = 758,885.48

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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.