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Finding the Fourth Proportional to 578,547.80, 864,303.47 and 374,481.57

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Solution

The fourth proportional to 578,547.80, 864,303.47 and 374,481.57 is: 559,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,547.80 : 864,303.47 = 374,481.57 : x
  2. Step 2: Convert to fraction form
    578,547.80/864,303.47 = 374,481.57/x
  3. Step 3: Cross multiply
    578,547.80x = 864,303.47 × 374,481.57
  4. Step 4: Simplify right side
    578,547.80x = 323,665,714,208.12
  5. Step 5: Solve for x
    x = 323,665,714,208.12/578,547.80
  6. Step 6: Final answer
    x = 559,445.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.