Home / 710,014.60-1,065,021.90-430,078.60

Finding the Fourth Proportional to 710,014.60, 1,065,021.90 and 430,078.60

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Solution

The fourth proportional to 710,014.60, 1,065,021.90 and 430,078.60 is: 645,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,014.60 : 1,065,021.90 = 430,078.60 : x
  2. Step 2: Convert to fraction form
    710,014.60/1,065,021.90 = 430,078.60/x
  3. Step 3: Cross multiply
    710,014.60x = 1,065,021.90 × 430,078.60
  4. Step 4: Simplify right side
    710,014.60x = 458,043,127,721.34
  5. Step 5: Solve for x
    x = 458,043,127,721.34/710,014.60
  6. Step 6: Final answer
    x = 645,117.90

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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.