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Finding the Fourth Proportional to 630,594.38, 870,246.38 and 358,710.19

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Solution

The fourth proportional to 630,594.38, 870,246.38 and 358,710.19 is: 495,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,594.38 : 870,246.38 = 358,710.19 : x
  2. Step 2: Convert to fraction form
    630,594.38/870,246.38 = 358,710.19/x
  3. Step 3: Cross multiply
    630,594.38x = 870,246.38 × 358,710.19
  4. Step 4: Simplify right side
    630,594.38x = 312,166,243,037.77
  5. Step 5: Solve for x
    x = 312,166,243,037.77/630,594.38
  6. Step 6: Final answer
    x = 495,034.93

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1.5x scale

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.