Home / 742,130.07-1,024,139.21-402,598.32

Finding the Fourth Proportional to 742,130.07, 1,024,139.21 and 402,598.32

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Solution

The fourth proportional to 742,130.07, 1,024,139.21 and 402,598.32 is: 555,585.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,130.07 : 1,024,139.21 = 402,598.32 : x
  2. Step 2: Convert to fraction form
    742,130.07/1,024,139.21 = 402,598.32/x
  3. Step 3: Cross multiply
    742,130.07x = 1,024,139.21 × 402,598.32
  4. Step 4: Simplify right side
    742,130.07x = 412,316,723,379.14
  5. Step 5: Solve for x
    x = 412,316,723,379.14/742,130.07
  6. Step 6: Final answer
    x = 555,585.52

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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.