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Finding the Fourth Proportional to 652,549.50, 900,518.58 and 397,953.54

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Solution

The fourth proportional to 652,549.50, 900,518.58 and 397,953.54 is: 549,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,549.50 : 900,518.58 = 397,953.54 : x
  2. Step 2: Convert to fraction form
    652,549.50/900,518.58 = 397,953.54/x
  3. Step 3: Cross multiply
    652,549.50x = 900,518.58 × 397,953.54
  4. Step 4: Simplify right side
    652,549.50x = 358,364,556,746.77
  5. Step 5: Solve for x
    x = 358,364,556,746.77/652,549.50
  6. Step 6: Final answer
    x = 549,176.05

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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.