Home / 405,484.47-559,445.67-282,973.59

Finding the Fourth Proportional to 405,484.47, 559,445.67 and 282,973.59

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Solution

The fourth proportional to 405,484.47, 559,445.67 and 282,973.59 is: 390,417.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,484.47 : 559,445.67 = 282,973.59 : x
  2. Step 2: Convert to fraction form
    405,484.47/559,445.67 = 282,973.59/x
  3. Step 3: Cross multiply
    405,484.47x = 559,445.67 × 282,973.59
  4. Step 4: Simplify right side
    405,484.47x = 158,308,349,649.86
  5. Step 5: Solve for x
    x = 158,308,349,649.86/405,484.47
  6. Step 6: Final answer
    x = 390,417.79

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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.