Finding the Fourth Proportional to 875,681.52, 1,208,413.08 and 513,346.70
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Solution
The fourth proportional to 875,681.52, 1,208,413.08 and 513,346.70 is: 708,402.37
Step by Step Solution
- Step 1: Write the proportion equation
875,681.52 : 1,208,413.08 = 513,346.70 : x - Step 2: Convert to fraction form
875,681.52/1,208,413.08 = 513,346.70/x - Step 3: Cross multiply
875,681.52x = 1,208,413.08 × 513,346.70 - Step 4: Simplify right side
875,681.52x = 620,334,866,854.84 - Step 5: Solve for x
x = 620,334,866,854.84/875,681.52 - Step 6: Final answer
x = 708,402.37
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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.