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Finding the Fourth Proportional to 630,802.04, 870,499.17 and 358,869.33

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Solution

The fourth proportional to 630,802.04, 870,499.17 and 358,869.33 is: 495,235.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,802.04 : 870,499.17 = 358,869.33 : x
  2. Step 2: Convert to fraction form
    630,802.04/870,499.17 = 358,869.33/x
  3. Step 3: Cross multiply
    630,802.04x = 870,499.17 × 358,869.33
  4. Step 4: Simplify right side
    630,802.04x = 312,395,453,903.46
  5. Step 5: Solve for x
    x = 312,395,453,903.46/630,802.04
  6. Step 6: Final answer
    x = 495,235.33

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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.