Home / 1,087,228.10-1,630,258.95-455,428.10

Finding the Fourth Proportional to 1,087,228.10, 1,630,258.95 and 455,428.10

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Solution

The fourth proportional to 1,087,228.10, 1,630,258.95 and 455,428.10 is: 682,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,228.10 : 1,630,258.95 = 455,428.10 : x
  2. Step 2: Convert to fraction form
    1,087,228.10/1,630,258.95 = 455,428.10/x
  3. Step 3: Cross multiply
    1,087,228.10x = 1,630,258.95 × 455,428.10
  4. Step 4: Simplify right side
    1,087,228.10x = 742,465,736,106.50
  5. Step 5: Solve for x
    x = 742,465,736,106.50/1,087,228.10
  6. Step 6: Final answer
    x = 682,897.85

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Double scale
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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.