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Finding the Fourth Proportional to 630,635.00, 870,295.52 and 358,742.30

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Solution

The fourth proportional to 630,635.00, 870,295.52 and 358,742.30 is: 495,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,635.00 : 870,295.52 = 358,742.30 : x
  2. Step 2: Convert to fraction form
    630,635.00/870,295.52 = 358,742.30/x
  3. Step 3: Cross multiply
    630,635.00x = 870,295.52 × 358,742.30
  4. Step 4: Simplify right side
    630,635.00x = 312,211,813,069.87
  5. Step 5: Solve for x
    x = 312,211,813,069.87/630,635.00
  6. Step 6: Final answer
    x = 495,075.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.