Home / 710,337.60-1,065,506.40-430,401.60

Finding the Fourth Proportional to 710,337.60, 1,065,506.40 and 430,401.60

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Solution

The fourth proportional to 710,337.60, 1,065,506.40 and 430,401.60 is: 645,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,337.60 : 1,065,506.40 = 430,401.60 : x
  2. Step 2: Convert to fraction form
    710,337.60/1,065,506.40 = 430,401.60/x
  3. Step 3: Cross multiply
    710,337.60x = 1,065,506.40 × 430,401.60
  4. Step 4: Simplify right side
    710,337.60x = 458,595,659,370.24
  5. Step 5: Solve for x
    x = 458,595,659,370.24/710,337.60
  6. Step 6: Final answer
    x = 645,602.40

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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.