Home / 478,567.51-660,378.04-282,303.40

Finding the Fourth Proportional to 478,567.51, 660,378.04 and 282,303.40

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Solution

The fourth proportional to 478,567.51, 660,378.04 and 282,303.40 is: 389,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,567.51 : 660,378.04 = 282,303.40 : x
  2. Step 2: Convert to fraction form
    478,567.51/660,378.04 = 282,303.40/x
  3. Step 3: Cross multiply
    478,567.51x = 660,378.04 × 282,303.40
  4. Step 4: Simplify right side
    478,567.51x = 186,426,965,977.34
  5. Step 5: Solve for x
    x = 186,426,965,977.34/478,567.51
  6. Step 6: Final answer
    x = 389,552.07

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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.