Finding the Fourth Proportional to 999,779.84, 1,379,731.68 and 564,303.21
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Solution
The fourth proportional to 999,779.84, 1,379,731.68 and 564,303.21 is: 778,758.46
Step by Step Solution
- Step 1: Write the proportion equation
999,779.84 : 1,379,731.68 = 564,303.21 : x - Step 2: Convert to fraction form
999,779.84/1,379,731.68 = 564,303.21/x - Step 3: Cross multiply
999,779.84x = 1,379,731.68 × 564,303.21 - Step 4: Simplify right side
999,779.84x = 778,587,010,259.67 - Step 5: Solve for x
x = 778,587,010,259.67/999,779.84 - Step 6: Final answer
x = 778,758.46
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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.