Finding the Fourth Proportional to 578,539.40, 867,809.10 and 526,929.80
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Solution
The fourth proportional to 578,539.40, 867,809.10 and 526,929.80 is: 790,394.70
Step by Step Solution
- Step 1: Write the proportion equation
578,539.40 : 867,809.10 = 526,929.80 : x - Step 2: Convert to fraction form
578,539.40/867,809.10 = 526,929.80/x - Step 3: Cross multiply
578,539.40x = 867,809.10 × 526,929.80 - Step 4: Simplify right side
578,539.40x = 457,274,475,501.18 - Step 5: Solve for x
x = 457,274,475,501.18/578,539.40 - Step 6: Final answer
x = 790,394.70
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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.