Finding the Fourth Proportional to 696,595.68, 961,312.86 and 390,739.95
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Solution
The fourth proportional to 696,595.68, 961,312.86 and 390,739.95 is: 539,227.20
Step by Step Solution
- Step 1: Write the proportion equation
696,595.68 : 961,312.86 = 390,739.95 : x - Step 2: Convert to fraction form
696,595.68/961,312.86 = 390,739.95/x - Step 3: Cross multiply
696,595.68x = 961,312.86 × 390,739.95 - Step 4: Simplify right side
696,595.68x = 375,623,338,850.76 - Step 5: Solve for x
x = 375,623,338,850.76/696,595.68 - Step 6: Final answer
x = 539,227.20
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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.