Home / 833,612.40-1,248,575.40-645,145.20

Finding the Fourth Proportional to 833,612.40, 1,248,575.40 and 645,145.20

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Solution

The fourth proportional to 833,612.40, 1,248,575.40 and 645,145.20 is: 966,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,612.40 : 1,248,575.40 = 645,145.20 : x
  2. Step 2: Convert to fraction form
    833,612.40/1,248,575.40 = 645,145.20/x
  3. Step 3: Cross multiply
    833,612.40x = 1,248,575.40 × 645,145.20
  4. Step 4: Simplify right side
    833,612.40x = 805,512,426,148.08
  5. Step 5: Solve for x
    x = 805,512,426,148.08/833,612.40
  6. Step 6: Final answer
    x = 966,291.32

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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.