Home / 938,437.40-1,407,852.95-406,034.12

Finding the Fourth Proportional to 938,437.40, 1,407,852.95 and 406,034.12

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Solution

The fourth proportional to 938,437.40, 1,407,852.95 and 406,034.12 is: 609,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,437.40 : 1,407,852.95 = 406,034.12 : x
  2. Step 2: Convert to fraction form
    938,437.40/1,407,852.95 = 406,034.12/x
  3. Step 3: Cross multiply
    938,437.40x = 1,407,852.95 × 406,034.12
  4. Step 4: Simplify right side
    938,437.40x = 571,636,335,132.12
  5. Step 5: Solve for x
    x = 571,636,335,132.12/938,437.40
  6. Step 6: Final answer
    x = 609,136.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.