Home / 740,316.08-1,021,636.52-400,784.32

Finding the Fourth Proportional to 740,316.08, 1,021,636.52 and 400,784.32

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Solution

The fourth proportional to 740,316.08, 1,021,636.52 and 400,784.32 is: 553,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,316.08 : 1,021,636.52 = 400,784.32 : x
  2. Step 2: Convert to fraction form
    740,316.08/1,021,636.52 = 400,784.32/x
  3. Step 3: Cross multiply
    740,316.08x = 1,021,636.52 × 400,784.32
  4. Step 4: Simplify right side
    740,316.08x = 409,455,897,955.37
  5. Step 5: Solve for x
    x = 409,455,897,955.37/740,316.08
  6. Step 6: Final answer
    x = 553,082.54

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Double scale
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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.