Home / 710,030.40-1,064,656.80-288,830.40

Finding the Fourth Proportional to 710,030.40, 1,064,656.80 and 288,830.40

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Solution

The fourth proportional to 710,030.40, 1,064,656.80 and 288,830.40 is: 433,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,030.40 : 1,064,656.80 = 288,830.40 : x
  2. Step 2: Convert to fraction form
    710,030.40/1,064,656.80 = 288,830.40/x
  3. Step 3: Cross multiply
    710,030.40x = 1,064,656.80 × 288,830.40
  4. Step 4: Simplify right side
    710,030.40x = 307,505,249,406.72
  5. Step 5: Solve for x
    x = 307,505,249,406.72/710,030.40
  6. Step 6: Final answer
    x = 433,087.44

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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.