Home / 1,029,397.20-1,544,702.40-430,312.20

Finding the Fourth Proportional to 1,029,397.20, 1,544,702.40 and 430,312.20

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Solution

The fourth proportional to 1,029,397.20, 1,544,702.40 and 430,312.20 is: 645,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,397.20 : 1,544,702.40 = 430,312.20 : x
  2. Step 2: Convert to fraction form
    1,029,397.20/1,544,702.40 = 430,312.20/x
  3. Step 3: Cross multiply
    1,029,397.20x = 1,544,702.40 × 430,312.20
  4. Step 4: Simplify right side
    1,029,397.20x = 664,704,288,089.28
  5. Step 5: Solve for x
    x = 664,704,288,089.28/1,029,397.20
  6. Step 6: Final answer
    x = 645,721.87

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1.5x scale

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.