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Finding the Fourth Proportional to 870,657, 1,201,582.16 and 483,547.12

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Solution

The fourth proportional to 870,657, 1,201,582.16 and 483,547.12 is: 667,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,657 : 1,201,582.16 = 483,547.12 : x
  2. Step 2: Convert to fraction form
    870,657/1,201,582.16 = 483,547.12/x
  3. Step 3: Cross multiply
    870,657x = 1,201,582.16 × 483,547.12
  4. Step 4: Simplify right side
    870,657x = 581,021,592,911.38
  5. Step 5: Solve for x
    x = 581,021,592,911.38/870,657
  6. Step 6: Final answer
    x = 667,336.96

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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.